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SOA Migration, Adoption, and Reuse Technique Family Members
This information sheet describes the SOA Migration, Adoption, and Reuse Technique (SMART), its benefits, and the SMART "family members."
12/10/2012Architecture Practices Initiative
The SEI Architecture Practices Initiative aims to improve product development and quality by using architecture to gain early confidence in achieving system-related business and mission goals.
06/06/2012Advanced Software Architecture Workshop
Information sheet describing the Advanced Software Architecture Workshop
04/25/2012It Takes an Ecosystem
This presentation introduces the STRategic Ecosystem Analysis Method (STREAM), which uses the architecture construct of a view to reduce model complexity.
03/22/2012What’s New in V2 of the Architecture Analysis & Design Language Standard?
This report provides an overview of changes and improvements to the Architecture Analysis & Design Language (AADL) standard for describing both the software architecture and the execution platform architectures of performance-critical, embedded, real-time systems.
02/27/2012Architecting Software the SEI Way--Analyzing and Evaluating Enterprise Architectures
John Klein reviews the SEI perspective on architecture-centric engineering, and discusses how this approach scales from its original software context through systems-of-systems.
02/27/2012Architecting Software the SEI Way--Architecture Evaluation: A Tool for Designing Systems That Meet Users' Needs
At this 2012 event, Felix Bachmann discussed the concepts used by an Architecture Tradeoff Analysis Method (ATAM) that make an evaluation successful, which can be integrated into the architecture design process to ensure the creation of successful systems.
02/27/2012Architecting Software the SEI Way--Software Architecture Fundamentals: Technical, Business, and Social Influences
Although software architecture is a key factor in determining the success or failure of a software system, software professionals throughout the industry continue to struggle with questions like: What exactly is a software architecture? Why is software architecture important?
09/06/2011Help with Adoption of Software Product Lines
This one-pager was produced for SPLC 2011 and focuses on how the SEI provides various types of software product lines training.
08/10/2011Architecture Competence
To improve architecture capability, the SEI has developed a diagnostic method to systematically assess your architecture competence at the individual, team, and organizational levels.
06/29/2011Service Oriented Architecture: A Quality Attribute Perspective
This presentation will talk about the effect that service orientation has on system quality attributes. (50 mins)
06/22/2011Service Oriented Architecture: A Quality Attribute Perspective (Webinar)
In this 2011 presentation, Grace Lewis talks about the effect that service oriented architecture has on system quality attributes.
06/07/2011Hands-On Software Architecture Course
A one-page brochure about the SEI's hands-on software architecture course.
05/04/2011Assurance Cases for Medical Devices
This presentation will include a brief introduction to assurance cases, why they are useful, how they are developed, and how they can be used to help assure the safety of medical devices. (1hr:02 mins)
04/28/2011Assurance Cases for Medical Devices (Webinar)
In this presentation, Chuck Weinstock gives a brief introduction to assurance cases. He discusses how they are developed and why they are useful.
04/05/2011Architectures for the Cloud: Best Practices for Navy Adoption of Cloud Computing
The goal of SEI research is to create best practices for architecture and design of systems that take advantage of the cloud, leading to greater system quality from both a consumer and provider perspective-.
01/28/2011Architecture Tradeoff Analysis Method (ATAM)
This information sheet describes the Architecture Tradeoff Analysis Method (ATAM.)
01/17/2011Performance Analysis of WS-Security Mechanisms in SOAP-Based Web Services
This paper presents the results of a series of experiments targeted at analyzing the performance impact of adding WS-Security, a common security standard used in IdM frameworks, to SOAP-based web services.
01/11/2011Architecture Curriculum
12/31/2010System of Systems Software Assurance (SoSSA) Initiative
12/31/2010System of Systems (SoS) Practice Initiative
12/31/2010Product Line Practice (PLP) Initiative
12/31/2010Adaptive Flow Control for Enabling Quality of Service in Tactical Ad Hoc Wireless Networks
This report details the results from 18 experiments to investigate Adaptive Quality of Service, an approach to enable applications to fulfill their missions despite network infrastructure limitations.
12/16/2010Enabling Agility Through Architecture
Enabling Agility Through Architecture: A Crosstalk article by Nanette Brown, Rod Nord, and Ipek Ozkaya.
11/24/2010Experiments with Service-Oriented Computing on Handheld Devices in Tactical Environments
This information sheet describes experiments using SEI-developed prototypes for testing service-oriented computing with smartphones in tactical network environments.
11/17/2010A Workshop on Analysis and Evaluation of Enterprise Architectures
This report summarizes a workshop on the analysis and evaluation of enterprise architectures that was held at the SEI in April of 2010.
11/09/2010Virtual Integration Demonstration
This 35-minute software architecture modeling demonstration describes an approach for virtual integration in system development.
11/08/2010Maximizing the Investment from Your Software Product Portfolio (Webinar)
Linda Northrop describes the basic concepts of software product lines, summarizing the software engineering and management practices needed for a product line approach.
09/30/2010Cloud Computing Basics Explained
This paper seeks to help organizations understand cloud computing essentials, including drivers for and barriers to adoption, in support of making decisions about adopting the approach.
09/30/2010Documenting Software Architectures: Views and Beyond, Second Edition
This book provides the most complete and current guidance on how to capture a software architecture in a commonly understandable form.
09/27/2010Emerging Technologies for Software-Reliant Systems of Systems
The purpose of this report is to present an informal survey of technologies that are, or are likely to become, important for software-reliant systems of systems in response to current computing trends.
09/15/2010Primer on SOA Terms
This white paper presents basic terminology related to Service- Oriented Architecture (SOA). The goal of the paper is to establish a baseline of terms for service-oriented systems.
08/25/2010Exploring Acquisition Strategies for Adopting a Software Product Line
Some basics of software product line practice, the challenges that make product line acquisition unique, and three basic acquisition strategies are all part of this white paper.
08/25/2010Speculations on Coordination Models
Len Bass's keynote presentation from ICGSE 2010 talks about the structure of coordination models, especially after development has begun.
08/20/2010A Framework for Modeling the Software Assurance Ecosystem: Insights from the Software Assurance Landscape Project
This report describes the SEI Assurance Modeling Framework and discusses an initial piloting of the framework to prove its value and insights gained from that piloting for the adoption of selected assurance solutions.
08/20/2010COVERT: A Framework for Finding Buffer Overflows in C Programs via Software Verification
This report presents COVERT, an automated framework aimed at finding buffer overflows in C programs using state-of-the-art software verification tools and techniques.
08/20/2010Relating Business Goals to Architecturally Significant Requirements for Software Systems
This report attempts to facilitate better elicitation of high-pedigree quality attribute requirements by understanding how business goals influence quality attribute requirements and architectures.
07/07/2010Software Architecture Fundamentals: Technical, Business, and Social Influences (Webinar)
Rob Wojcik discusses the the role that software architecture plays in an organization, the role of quality attribute requirements in architectural design, and more.
06/30/2010Software Product Lines: Report of the 2010 U.S. Army Software Product Line Workshop
This report synthesizes presentations and discussions from a 2010 workshop to discuss product line practices and operational accomplishments.
05/26/2010Engineering Improvement in Software Assurance: A Landscape Framework
The SEI is developing a way to model key aspects of assurance to accelerate the adoption of assurance solutions within operational settings for the Department of Defense and other government organizations. SEI researchers have developed an Assurance Modeling Framework to build a profile for an assurance capability area such as vulnerability management within an assurance quality such as security. (1hr)
05/14/2010The Hard Choices Game Explained
The Hard Choices game is a simulation of the software development cycle meant to communicate the concepts of uncertainty, risk, options, and technical debt. In the quest to become market leader, players race to release a quality product to the marketplace. By the end of the game, everyone has experienced the implications of investing effort to gain an advantage or of paying a price to take shortcuts, as they em-ploy design strategies in the face of uncertainty.
05/14/2010Evaluating and Mitigating Software Supply Chain Security Risks
This 2010 report identifies software supply chain security risks and specifies the evidence that must be gathered to determine whether these risks have been mitigated.
04/02/2010Evaluating Software's Impact on System and System and System of Systems Reliability
System engineers are uncertain about how to determine the impact of software on overall system reliability – particularly when attempting to evaluate the impact of software on system of systems (SoS) reliability. New guides are needed to better deal adequately with aspects of systems and SoS reliability.
04/01/2010Organizational Implications of Systems of Systems
The is a tutorial presentation on systems of systems and their organizational implications, including effects on governance and reward structures. Replete with examples.
03/29/2010Reports from the Field on System of Systems Interoperability Challenges and Promising Approaches
This report identifies challenges and successful approaches to achieving system of systems (SoS) interoperability.
03/18/2010SEI Software Product Line Diagnostics
Three diagnostic tools for understanding an organization's readiness for and initial approach to software product lines
03/18/2010Assessing and Improving Architecture Competence
Achieving architecture competence will ensure that you realize the benefit of architecture-centric practice, including the alignment of your architecture to your business goals and predictable, routine success in architecture.
03/12/2010Designing Software Architecture to Achieve Business Goals
Designing Software Architecture to Achieve Business Goals: a presentation by Len Bass given to the Academy for Software Engineering Education and Training on March 12, 2010.
01/29/2010SEI Software Product Line Curriculum
Enhance your skills in software product line adoption and learn how to employ the proven strategies and techniques that make software product lines successful.
12/18/2009A Structured Approach for Reviewing Architecture Documentation
This 2009 technical note proposes a structured approach for reviewing architecture documentation that is centered on the documentation's stakeholders.
11/30/2009An Everyday Example of Architecture Documentation: Subway Maps
This white paper explores the idea that subway maps provide a good, common example of architecture documentation and that they might be instructive about good software architecture documentation,
11/30/2009Proceedings of the Workshop on Software Engineering Foundations for End-User Programming (SEEUP 2009)
This report presents the papers that were given at SEEUP 2009, held at the 31st ICSE in Vancouver, British Columbia on May 23, 2009.
11/25/2009Cloud Computing
This on-demand webinar gives an introductory view of cloud computing, a paradigm being adopted by commercial, government and DoD organizations(58 mins).
11/24/2009Talking Architects with Len Bass
Video of interview with the SEI's Len Bass, co-author of Software Architecture in Practice, about quality attributes (non-functional requirements) in an agile development environment
10/29/2009Data Model as an Architectural View
This 2009 report describes the data model as an architectural style in an effort to help architects apply this style to create data model architectural views.
08/04/2009Realizing and Refining Architectural Tactics: Availability
Tactics are fundamental elements of software architecture that an architect employs to meet a system's quality requirements. This report describes an updated set of tactics that enable the architect to build availability into a system.
08/01/2009Formulation of a Production Strategy for a Software Product Line
This 2009 report describes a technique for formulating the production strategy of a production system.
06/10/2009Revealing Cost Drivers for Systems Integration and Interoperability Through Q Methodology
The findings suggest that Q Methodology may prove helpful in isolating many of the non-technical latent cost factors associated with system integration and interoperability.
06/08/2009A Research Perspective on Maintenance and Reengineering of Service-Oriented Systems
This position paper surveys the landscape of service-oriented architecture practice as it pertains to service-orientation maintenance and reengineering.
06/01/2009Documenting Software Architectures Podcast
Paul Clements talks about best practices for communicating (documenting) software architectures and summarizes key points from the book Documenting Software Architectures: Views and Beyond and the related two-day course, Documenting Software Architectures.
05/15/2009Distributed Project Governance Assessment
This tool reveals details embedded in an organization’s typical work flows, their controlling stakeholders, and the important quality attributes associated with the performance of those dependencies.
04/21/2009Assurance Cases for Design Analysis of Complex System of Systems Software
This paper discusses the application of assurance cases as a means of building confidence that the software design of a complex system of systems will actually meet the operational objectives set forth in the project’s top-level requirements.
04/07/2009SEI Mosaic: Rethinking Risk Management
This document highlights a new, systemic approach to risk management using recently released SEI Mosaic, a suite of methods that can be used across the life cycle and supply chain.
04/01/2009Software Product Lines: Report of the 2009 U.S. Army Software Product Line Workshop
This report is a synthesis of the presentations and discussions that took place during the 2009 U.S. Army Software Product Line Workshop.
04/01/2009A Workshop on Architecture Competence
This report summarizes a June 2008 architecture competence workshop where practitioners discussed key issues in assessing architecture competence in organizations.
03/05/2009Method Framework for Engineering System Architectures, The
To be successful, every system needs a good architecture and that requires the use of a good architecture engineering method. However, systems vary greatly in size, complexity, criticality, domain, operational dependence on other systems, the technology used and its diversity, requirements volatility, required quality characteristics and attributes, and volatility of technology and component parts. (1hr:3 mins)
02/12/2009Overview of a Proactive Software Product Line Acquisition Approach
presented at the SEI Army Software Product Line Workshop, February 12, 2009
02/12/2009Approach to Software Product Line Acquisition Planning, An
presented at the SEI Army Software Product Line Workshop, February 12, 2009
02/12/2009Diamond Software Product Family Product Centered Organization (PCO)
Presented: February 2009
02/12/2009Army Software Product Line Workshop
This page contains the slides from the “Army Software Product Line Workshop,” which was hosted by Linda M. Northrop of the Software Engineering Institute (SEI) in February 2009.
02/12/2009Army Software Product Line Workshop SPL Overview
This page contains the slides from the “Army Software Product Line Workshop,” which was hosted by Linda M. Northrop of the Software Engineering Institute (SEI) in February 2009.
10/14/2008Model-Driven Performance Analysis
10/14/2008Integrating Quality-attribute Reasoning Frameworks in the ArchE Design Assistant
Bachmann et al present their work on a design assistant called ArchE that provides third-party researchers with an infrastructure to integrate their own quality-attribute models.
09/17/2008Service-Oriented Product Lines: Towards a Development Process and Feature Management Model for Web Services
presented at SOAPL 2008: Service-Oriented Architectures and Software Product Lines - Putting Both Together, Limerick, Ireland, September 8-12, 2008
09/08/2008Combining Product Line Engineering and Service Oriented Architecture in Health Care Infrastructure Systems: Experience Report
This 2008 presentation – “Combining Product Line Engineering and Service Oriented Architecture in Health Care Infrastructure” – was delivered by Jörg Bartholdt, Bernd Franke, C. Schwanninger, and Michael Stal of Siemens AG.
09/08/2008Semantic Web Services-based Reasoning in the Design of Software Product Lines
presented at the 12th International Software Product Line Conference, 2008, in Limerick, Ireland, September 8-12, 2008
09/08/2008Imaging Services on the Grid as a Product Line : Requirements and Architecture
presented at SOAPL 2008: Service-Oriented Architectures and Software Product Lines - Putting Both Together, Limerick, Ireland, September 8-12, 2008
09/08/2008Workshop on Service- Oriented Architectures and Software Product Lines - Putting Both Together (SOAPL 2008)
presented at SOAPL 2008: Service-Oriented Architectures and Software Product Lines - Putting Both Together, Limerick, Ireland, September 8-12, 2008
09/08/2008Feature Based Design of Web Service Transaction Compensations
presented at SOAPL 2008: Service-Oriented Architectures and Software Product Lines - Putting Both Together, Limerick, Ireland, September 8-12, 2008
09/08/2008Business Process Lines to Develop Service-Oriented Architectures through the Software Product Lines paradigm
This presentation on business process lines to service-oriented architecture through the software product lines paradigm was delivered by five members of the University of Bari in 2008.
08/01/2008Create, Apply, and Amplify: A Story of Technology Development
Create, Apply, and Amplify: A Story of Technology Development
07/01/2008Software Product Line Essentials
Presented: July 2008
06/13/2008Beyond IPPD: Distributed Collaboration in a Systems-of-Systems (SoS) Context
Urs Andelfinger and Suzanne Garcia-Miller look at the possible implications of issues stemming from complex system of systems for IPPD content in CMMI V. 1.2 (2008 presentation).
06/02/2008Evaluating Service-Oriented Architectures
The emergence of service-oriented architecture (SOA) as an approach for integrating applications that expose services presents many new challenges to organizations resulting in significant risks to their business. Particularly important among those risks are failures to effectively address quality attribute requirements such as performance, availability, security, and modifiability. Because the risk and impact of SOA are distributed and pervasive across applications, it is critical to perform an architecture evaluation early in the software life cycle. This report contains technical information about SOA design considerations and tradeoffs that can help the architecture evaluator to identify and mitigate risks in a timely and effective manner. The report provides an overview of SOA, outlines key architecture approaches and their effect on quality attributes, establishes an organized collection of design-related questions that an architecture evaluator may use to analyze the ability of the architecture to meet quality requirements, and provides a brief sample evaluation.
06/01/2008SoS Navigator 2.0: A Context-Based Approach to System-of-Systems Challenges
This 2008 report introduces the fundamental concepts, processes, and techniques of the evolving SoS Navigator approach. It also summarizes case studies that illustrate the use of SoS Navigator processes and tools in healthcare, military, and civilian government systems-of-systems contexts.
06/01/2008Proceedings of the First Workshop on Service-Oriented Architectures and Product Lines
This 2008 report includes an overview of the First Workshop on Service-Oriented Architectures and Product Lines, four invited presentations, details of the workshops outcomes, and the workshop position papers.
05/11/2008Leadership and Management in Software Architecture Leadership and Management in Software Architecture
The workshop on Leadership and Management in Software Architecture that took place at ICSE 2008 was focused on understanding these non-technical duties and the type of support an architect should expect from an organization.
05/05/2008Building Secure Systems Using Model-Based Engineering and Architectural Models
A system designer faces several challenges when specifying security for distributed computing environments or migrating systems to a new execution platform.
05/01/2008Using Model-Based Engineering and Architectural Models to Build Secure Systems
In this paper, the authors present analytical techniques to model and validate security protocols for enforcing confidentiality and integrity.
05/01/2008Requisite Agility
Requisite Agility
04/01/2008Making SIMPLE Decisions about Software Product Lines
Making SIMPLE Decisions about Software Product Lines
03/01/2008Steps Toward Network-Centric Operation
Steps Toward Network-Centric Operation
02/01/2008Workshop Examines SOA Hard Problems and Potential Solutions
Workshop Examines SOA Hard Problems and Potential Solutions
02/01/2008ASSIP Study of Real-Time Safety-Critical Embedded Software-Intensive System Engineering Practices
This report presents findings of a study of RTSCE software-intensive systems issues and develop recommendations for effectively dealing with those issues.
01/01/2008Resources for Getting Started with Software Product Lines
Resources for Getting Started with Software Product Lines
12/31/2007Survival in a Systems of Systems World
Presented: June 2007
12/25/2007Diagrams and Languages for Model-Based Software Engineering of Embedded Systems: UML and AADL
The tools compared in this discussion, the Unified Modeling Language (UML) and the Architecture Analysis and Design Language (AADL), facilitate the modeling of software architecture and provide elements to understand it.
09/10/2007A Taxonomy of Variability in Web Service Flows
presented at Service Oriented Architectures and Product Lines - What is the Connection? (SOAPL - 07), September 10, 2007, Kyoto, Japan
09/10/2007Comparison of Service and Software Product Family Modeling
Similarities and differences in service oriented computing modeling and software product family modeling.
09/10/2007Identifying and Specifying Reusable Services of Service Centric Systems through Product Line Technology
Presentation by Jaejoon Lee (Fraunhofer Institut Experimentelles Software Engineering) on identifying and specifying reusable services for service-oriented architecture (SOA).
09/03/2007Product Lines that supply other Product Lines: A Service-Oriented Approach
presented at Service Oriented Architectures and Product Lines - What is the Connection? (SOAPL - 07), September 10, 2007, Kyoto
09/01/2007Using Aspect-Oriented Programming to Enforce Architecture
This report illustrates how to use AOP (aspect-oriented programming) to ensure conformance to architectural design, proper use of design patterns and programming best practices, conformance to coding policies and naming conventions.
09/01/2007Certified Binaries for Software Components
This report presents an approach to certify binary code against expressive policies to achieve the benefits of PCC and CMC.
09/01/2007Modifiability Tactics
This report describes how architectural tactics are based on the parameters of quality attribute models.
08/02/2007SEI Software Architecture Workshop for Educators
presented as part of the SEI Software Architecture Workshop for Educators, August 2007
08/02/2007ArchE – An Architecture Design Assistant
presented as part of the SEI Software Architecture Workshop for Educators, August 2007
08/02/2007SEI Software Architecture Workshop for Educators (Presentation)
The Fourth SEI Software Architecture Workshop for Educators was held at the Software Engineering Institute in Pittsburgh, PA on July 31- August 2, 2007.
07/01/2007Mitigating the Risk of Using Service-Oriented Architectures
Mitigating the Risk of Using Service-Oriented Architectures
07/01/2007Lessons Learned about Software Architecture
Lessons Learned about Software Architecture
07/01/2007Modeling of System Families
This report discusses how AADL can be used to model system families and configurations of system and component variants.
06/01/2007Aligning Organizational Activities with Architectural Design
A presentation with audio
05/15/2007Working Session: Software Architecture Competence
presentation made by Paul Clements at the SATURN 2007 Working Session "Architecture Competence," May 15, 2007
05/14/2007Negative Impacts of Ignoring Stakeholder Quality Attributes
Presented: May 2007
05/14/2007Software Architecture Technology Initiative
presentation made by Mark Klein at the Third Annual SATURN Workshop, May 2007
05/14/2007SEI Architecture Techniques Complementary to the RUP
presentation made by Stuart Kerrigan and Richard van Schelven at the Third Annual SATURN Workshop, May 2007
05/14/2007Common ATAM Errors
Presented: May 2007
05/14/2007Introducing Scenario-based Architecture Reviews
presentation made at the 2007 SATURN Workshop
05/01/2007The Double Challenge in Engineering Complex Systems of Systems
The Double Challenge in Engineering Complex Systems of Systems
05/01/2007ArchE-the Architecture Expert
ArchE-the Architecture Expert
05/01/2007Software Product Lines FAQs Part VI: Using Software Product Lines with Other Approaches
Software Product Lines FAQs Part VI: Using Software Product Lines with Other Approaches
05/01/2007Quality-Attribute-Based Economic Valuation of Architectural Patterns
This 2007 report shows how an analysis of the options embodied within architectural patterns allows a software and system architect or manager to make reasoned choices about the future value of design decisions, considering this value along multiple quality attribute dimensions.
04/19/2007Engineering Performance-Critical Systems: meeting and exceeding performance, dependability, and interoperability goals
04/01/2007Army Engineering Center Chooses SMART Approach to SOA Planning
Army Engineering Center Chooses SMART Approach to SOA Planning
04/01/2007Challenges of Establishing Network-Centric Operations I: Technical Research Challenges
Challenges of Establishing Network-Centric Operations I: Technical Research Challenges
04/01/2007Coming Soon: A New Version of the SEI's Framework for Software Product Line Practice
Coming Soon: A New Version of the SEI's Framework for Software Product Line Practice
03/29/2007Improving Software Architecture Competence
Presented: March 2007
03/26/2007Software Architecture Design with ArchE
Felix Bachmann, Lenn Bass, and Philip Bianco present ArchE, a tool that provides the right information at the right time for architect when designing software architecture.
03/22/2007Predictable, Model-Based Engineering for Embedded Systems
03/01/2007Perspectives on Free and Open Source Software
This book examines specific aspects of F/OSS in a way that is both scientifically rigorous and highly relevant to real-world managerial and technical concerns.
03/01/2007Workshop to Present Best Practices in Software Architecture
Workshop to Present Best Practices in Software Architecture
03/01/2007Improving Software Architecture Competence
Improving Software Architecture Competence by Paul Clements, International Association of Software Architects (IASA), March 2007.
03/01/2007Software Architecture: The Next Generation
Software Architecture: The Next Generation
03/01/2007Software Product Lines: Reuse That Makes Business Sense (Boeing Software Conference)
Presented: March 2007
02/01/2007SEI Publishes Framework for Software Process Research
SEI Publishes Framework for Software Process Research
02/01/2007A Practical Example of Applying Attribute-Driven Design (ADD), Version 2.0
This 2007 report describes an example application of the ADD method, an approach to defining a software architecture in which the design process is based on the quality attribute requirements the software must fulfill.
01/19/2007Learn to use the SAE AADL Standard Model-Based Engineering with SAE AADL
Learn to use the SAE AADL Standard Model-Based Engineering with SAE AADL
01/12/2007SAE Architecture Analysis and Design Language Fact Sheet
The SAE AADL is an international standard for predictable model-based engineering of real-time and embedded computer systems.
01/01/2007FAQs Part 5: Getting Started
FAQs Part 5: Getting Started
01/01/2007Conditions for Achieving Network-Centric Operations in Systems of Systems
This 2007 report lists conditions that must prevail to achieve effective acquisition, development, and use of systems of systems.
11/01/2006Army ASSIP System-of-Systems Test Metrics Task
This report contains presents the results of an effort to improve the acquisition of software-intensive systems by focusing on acquisition programs, people, and production/sustainment and by institutionalizing continuous improvement.
11/01/2006Attribute-Driven Design (ADD), Version 2.0
This report revises the steps of the Attribute-Driven Design (ADD) method and offers practical guidelines for carrying out each step.
10/16/2006Architecture and Design
This page contains the slides for John Klein’s guest lecture for COMP 180: Software Engineering, held at Tufts University, during the 2006 fall semester.
10/01/2006System-of-Systems Governance: New Patterns of Thought
10/01/2006Topics in Interoperability: Structural Programmatics in a System of Systems
09/01/2006Certifying the Absence of Buffer Overflows
This report presents a technique for certifying the safety of buffer manipulations in C programs.
09/01/2006Interoperable Acquisition for Systems of Systems: The Challenges
This 2006 report explores how systems-of-systems realities necessitate changes in the processes used to acquire, develop, field, and sustain operational capability.
09/01/2006Risk Themes Discovered Through Architecture Evaluations
This 2006 report analyzes the output of 18 evaluations conducted using the Architecture Tradeoff Analysis (ATAM). The goal of the analysis was to find patterns in the risk themes identified during those evaluations.
08/01/2006A Comparison of Requirements Specification Methods from a Software Architecture Perspective
In this report, five methods for the elicitation and expression of requirements are evaluated with respect to their ability to capture architecturally significant requirements.
07/26/2006Best Practices in Software Architecture
This presentation on best practices in software architecture was delivered by Paul C. Clements of the Software Engineering Institute (SEI) on July 26, 2006.
07/01/2006Claims You’ll Need to Justify to Assure That Your System Will Succeed
Claims You’ll Need to Justify to Assure That Your System Will Succeed
06/01/2006Joint Capabilities and System-of-Systems Solutions: A Case for Crossing Solution Domains
This 2006 report presents a case for the investigation and adaptation of structural and dynamic modeling techniques to the engineering of systems of systems.
06/01/2006Governance Issues for a Service-Oriented Architecture
Governance Issues for a Service-Oriented Architecture
06/01/2006Best Practices in Software Architecture
Best Practices in Software Architecture, by Paul Clements
06/01/2006Five Maxims about Emergent Behavior in Systems of Systems
Five Maxims about Emergent Behavior in Systems of Systems
06/01/2006The Hottest Issues in Software Product Lines:
The Hottest Issues in Software Product Lines:
06/01/2006Architectural Tactics
In this presentation, Len Bass attempts to determine more precisely what the relationship is between software architecture and software quality attributes such as performance, security, testability and so on.
05/01/2006Quality Attributes and Service-Oriented Architectures
Quality Attributes and Service-Oriented Architectures
04/26/2006Architecture Evolution Working Session
This page contains the slides from a working session conducted at the Software Architecture Technology User Network (SATURN) 2006 workshop, held in Pittsburgh, PA.
04/25/2006Architecture Centric Design Method
Presented: April 2006
04/25/2006Architecture Analysis Boeing’s Experiences using the SEI ATAM and QAW Processes
Presented: April 2006
04/19/2006Let’s Teach Architecting High Quality Software
Presented: April 2006
04/03/2006Software Product Lines: Reuse That Makes Business Sense
This presentation on Software Product Lines: Reuse That Makes Business Sense was delivered by Linda M. Northrop of the Software Engineering Institute (SEI) in April 2006.
04/01/2006System-of-Systems Navigator: An Approach for Managing System-of-Systems Interoperability
04/01/2006Autonomic Computing
This report examines selected aspects of autonomic computing and explores some of the strengths and weaknesses of that technology.
04/01/2006System-of-Systems Navigator: An Approach for Managing System-of-Systems Interoperability
System-of-Systems Navigator: An Approach for Managing System-of-Systems Interoperability
04/01/2006FAQs Part 4: Product Lines in the Context of Acquisition
FAQs Part 4: Product Lines in the Context of Acquisition
04/01/2006A Unified Process Improvement Approach for Multi-Model Improvement Environments
A Unified Process Improvement Approach for Multi-Model Improvement Environments
03/01/2006On System Scalability
This 2006 report presents an analysis of what is meant by scalability and a description of factors to be considered when assessing the potential for system scalability.
03/01/2006Strategic Architecting
Strategic Architecting
03/01/2006R2PL 2005 Proceedings of the First International Workshop on Reengineering Towards Product Lines
This 2006 report contains the proceedings from the First International Workshop on Reengineering Towards Product Lines (R2PL) 2005, which was held in November 2005.
03/01/2006An Emergent Perspective on Interoperation in Systems of Systems
This 2006 report facilitates discussion and reasoning about interoperation within systems of systems by showing some of the interdependencies among systems, emergence, and interoperation.
01/02/2006Future Trends of Software Technology and Applications: Software Architecture
Presented: January 2006
01/01/2006Three Perspectives of Service-Oriented Architectures
Three Perspectives of Service-Oriented Architectures
01/01/2006FAQs Part 3: Exploring the Issues More Deeply
FAQs Part 3: Exploring the Issues More Deeply
12/01/2005Categorizing Business Goals for Software Architectures
This report provides a categorization of possible business goals for software-intensive systems, so that individuals have some guidance in the elicitation, expression, and documentation of business goals.
11/01/2005Topics in Interoperability: Concepts of Ownership and Their Significance in Systems of Systems
11/01/2005Topics in Interoperability: Infrastructure Replacement in a System of Systems
11/01/2005Software Product Lines: Experience from the Eighth DoD Software Product Line Workshop
This 2008 report includes an overview of the First Workshop on Service-Oriented Architectures and Product Lines, workshop position papers, and more.
09/27/2005Examining Product Line Readiness: Experiences with the SEI Product Line Technical Probe
Presented: November 2005
09/01/2005Introduction to Software Product Line Adoption
In this 2005 presentation, Linda M. Northrop of the Software Engineering Institute (SEI) provides an introduction to software product line acquisition.
09/01/2005Experience Using the Web-Based Tool Wiki for Architecture Documentation
This 2005 report discusses the benefits and challenges of using a wiki-based collaborative environment to create software architecture documentation.
09/01/2005Exploring Programmatic Interoperability: Army Future Force Workshop
This report documents the proceedings of the Future Force Workshop held at the SEI in 2004.
09/01/2005Variability in Software Product Lines
This 2005 report by Felix Bachmann and Paul C. Clements describes the concepts needed when creating core assets with included variability.
09/01/2005Elements of a Usability Reasoning Framework
This note describes an ARL implementation of two usability scenarios: displaying progress feedback and allowing cancel.
09/01/2005Lessons Learned Model Checking an Industrial Communications Library
This 2005 report describes the application of a reasoning framework to the design of an industrial communications library and the problems that were found.
09/01/2005Preparing for Automated Derivation of Products in a Software Product Line
This 2005 report provides an end-to-end view of the activities that are needed to support the automatic derivation of products within a software product line.
08/01/2005Some Current Approaches to Interoperability
This 2005 report examines some of the complexities of interoperability and some recent research approaches to achieving it.
07/01/2005Comparing the SEI's Views and Beyond Approach for Documenting Software Architectures with ANSI-IEEE 1471-2000
This report summarizes the V&B and 1471 approaches to architecture description, and shows how a software architecture document prepared using V&B can be made compliant with 1471.
07/01/2005Reasoning Frameworks
This report describes a vehicle for encapsulating the quality attribute knowledge needed to understand a system's quality behavior as a reasoning framework that can be used by nonexperts.
06/13/2005Adopting Software Product Lines: Getting Leverage from Your Process Improvement
Presented: June 2005
06/01/2005A Process for Context-Based Technology Evaluation
This report describes a process called context-based evaluation that determines the fitness of a technology within a specific context.
05/02/2005Software Product Lines: Past, Present, and Future
Presented: May 2005
04/22/2005Industry Best Practices in Achieving Service Oriented Architecture
04/12/2005Software Product Lines
Presented: April 2005
04/06/2005Methodical Design of Software Architecture Using an Architecture Design Assistant (ArchE)
This presentation – on methodically designing software architecture using ArchE, an architecture design assistant – was presented by Felix Bachmann and Mark H. Klein in 2005.
04/01/2005Introducing a Guide to Interoperability
Within the Department of Defense (DoD), government, and corporate worlds, large-scale systems of systems (SoS) are increasingly being put together in an unprecedented way. Establishing interoperability between the constituent systems is increasingly a key for an organization to meet its critical goals. However, as organizations envision transparent net-centric operations spanning a large number of systems, we have found that successfully achieving such a vision requires a fundamental shift in traditional ways of thinking about system development, acquisition, and management.
04/01/2005Components of Software Architecture Design and Analysis, The
The Components of Software Architecture Design and Analysis
04/01/2005FAQs Part 2: Are Product Lines Right for My Organization?
FAQs Part 2: Are Product Lines Right for My Organization?
03/01/2005Analyzing the Reuse Potential of Migrating Legacy Components to a Service-Oriented Architecture
Analyzing the Reuse Potential of Migrating Legacy Components to a Service-Oriented Architecture
03/01/2005Integrating Architecture Methods: The Case of the QAW and the ADD Method
Integrating Architecture Methods: The Case of the QAW and the ADD Method
03/01/2005FAQs: An Introduction to Software Product Lines
FAQs: An Introduction to Software Product Lines
03/01/2005Using Product Line Analysis to Get Started With Software Product Lines
Using Product Line Analysis to Get Started With Software Product Lines
03/01/2005Topics in Interoperability: System-of-Systems Evolution
03/01/2005Software Product Lines: Experiences from the Seventh DoD Software Product Line Workshop
This 2005 report summarizes discussions and presentations from the Seventh Department of Defense (DoD) Product Line Practice Workshop.
02/01/2005Service-Oriented Architectures as an Interoperability Mechanism
Service-Oriented Architectures as an Interoperability Mechanism
02/01/2005Architecture Business Cycle Revisited: A Business Goals Taxonomy to Support Architecture Design and Analysis, The
The Architecture Business Cycle Revisited: A Business Goals Taxonomy to Support Architecture Design and Analysis
02/01/2005Only Leaders Need Apply
Only Leaders Need Apply
02/01/2005New Curriculum Fosters Adoption of Software Product Line Practices
New Curriculum Fosters Adoption of Software Product Line Practices
02/01/2005The Structured Intuitive Model for Product Line Economics (SIMPLE)
This 2005 report presents SIMPLE, a general-purpose business model that supports the estimation of the costs and benefits in a product line development organization.
01/01/2005Using Architecture-Centric Methods within Plan Driven and Agile Software Development Processes
Presented: January 2005
01/01/2005Nine Characteristics of a COTS and Reuse Management Plan
Nine Characteristics of a COTS and Reuse Management Plan
01/01/2005Three Perspectives Required of Service-Oriented Architectures
Three Perspectives Required of Service-Oriented Architectures
01/01/2005Integrating Architecture Methods: The Case of Extreme Programming
Integrating Architecture Methods: The Case of Extreme Programming
01/01/2005Pas de Deux: Making the Two-Part Organization Work
Pas de Deux: Making the Two-Part Organization Work
01/01/2005An Adoption Roadmap for Software Product Line Practice
An Adoption Roadmap for Software Product Line Practice
12/01/2004Approaches to Constructive Interoperability
This report outlines several approaches to constructing systems of systems that have interoperability requirements, with respect to syntactic and semantic interoperability.
12/01/2004Discovering Architectures from Running Systems: Lessons Learned
This report describes a technique that uses automatically generated runtime observations of an executing system to construct an architectural view of the system.
12/01/2004Promising Technologies for Future Systems
This 2004 report presents of a few of the many programs, technologies, and research efforts that are addressing the challenges faced by future systems.
09/01/2004Software Product Line Adoption Roadmap
This 2004 report introduces the Adoption Factory pattern, which provides a generic roadmap to guide a manageable, phased product line adoption strategy.
09/01/2004Integrating Software-Architecture-Centric Methods into Extreme Programming (XP)
The report presents a summary of XP (Extreme Programming) and examines the potential uses of the SEI's architecture-centric methods.
09/01/2004Creating and Using Software Architecture Documentation Using Web-Based Tool Support
This report describes a design prototype that demonstrates a web-based approach to creating, communicating, and using software architecture throughout the life of the system.
08/30/2004Software Factories: Assembling Applications with Patterns, Models, Frameworks, and Tools
Presented at the Third Software Product Line Conference (2004)
08/01/2004Assumptions Management in Software Development
This technical note explores assumptions management as a method for improving software quality.
07/01/2004Integrating the Quality Attribute Workshop (QAW) and the Attribute-Driven Design (ADD) Method
This technical note reports on a proposal to integrate the SEI Quality Attribute Workshop (QAW) and the SEI Attribute-Driven Design (ADD) method.
07/01/2004Integrating Software-Architecture-Centric Methods into the Rational Unified Process
This report presents a summary of the RUP (Rational Unified Process) and examines the potential uses of the SEI's architecture-centric methods.
07/01/2004A Process for COTS Software Product Evaluation
This 2003 report focuses on COTS product evaluations conducted for the purpose of selecting products to meet a known need in a system.
04/21/2004Integration and Interoperability Models for Systems of Systems
David J. Carney and Tricia Oberndorf propose and discuss a unified model of interoperability for the integration of system of systems (SoSs) in this 2004 presentation.
04/01/2004Documenting Component and Connector Views with UML 2.0
This 2004 report explores how changes in UML 2.0 affect UML's suitability for documenting component and connector views.
04/01/2004System of Systems Interoperability (SOSI): Final Report
This technical report documents the findings of an internal research and development effort on system of systems interoperability (SOSI).
04/01/2004An Alternative to Technology Readiness Levels for Non-Developmental Item (NDI) Software
This report explores the difficulties in using TRLs as they apply to NDI software technology and products, and explores an alternative set of readiness criteria.
03/29/2004Conflict Patterns: Toward Identifying Suitable Middleware
This whitepaper describes patterns of interoperability conflicts along with their typical resolution in an effort to present reusable solutions for the design of integration architectures.
03/29/2004COTS Usage Risk Evaluation Participant’s Overview
This document provides an overview of the three steps of the COTS Usage Risk Evaluation (CURE) that involve participation by the program’s team members. For each step, both the activity and the personnel expected to perform it are discussed.
03/03/2004Achieving Product Qualities Through Software Architecture Practices
Presented: March 2004
03/01/2004Emergent Issues in Interoperability
Emergent Issues in Interoperability
03/01/2004Integrating Architecture Methods: The Case of the Rational Unified Process
Integrating Architecture Methods: The Case of the Rational Unified Process
03/01/2004Marathon Man
Marathon Man
03/01/2004Making the Use of the DoDAF Easier for DoD Organizations
Making the Use of the DoDAF Easier for DoD Organizations
03/01/2004Current Perspectives on Interoperability
This 2004 report describes current research within the software engineering community on the topic of interoperability between software systems.
03/01/2004Software Product Lines: Experiences from the Sixth DoD Software Product Line Workshop
This 2004 report summarizes the presentations and discussions from the Sixth Department of Defense (DoD) Product Line Practice Workshop in September 2003.
03/01/2004A Study of Product Production in Software Product Lines
This 2004 report presents the results of a study that focused on how product line organizations create products.
02/01/2004Calculating Return on Investment for Software Product Lines
Calculating Return on Investment for Software Product Lines
02/01/2004Guiding Principles for Interoperability
Guiding Principles for Interoperability
02/01/2004The Recovery of Runtime Architectures
The Recovery of Runtime Architectures
02/01/2004Tiptoe Carefully or Dive Right In?
Tiptoe Carefully or Dive Right In?
02/01/2004Architecture Reconstruction Guidelines, Third Edition
This report describes the process of architecture reconstruction using the Dali architecture reconstruction workbench.
01/01/2004Principles of Architecture Design and Evaluation
Presented: January 2004
01/01/2004Design and Analysis Principles for Software Architecture
Presented: January 2004
01/01/2004Eight Architecture Lessons from History
This 2004 whitepaper offers eight lessons from history for the software architecture field, drawn from peer fields i.e. Military, Civil, Finance, Mathematics, Astronomy, Social and Medical.
01/01/2004Integrating Architecture Methods: The Case of the ATAM and the CBAM
Integrating Architecture Methods: The Case of the ATAM and the CBAM
12/01/20033rd International Conference on COTS-Based Software Systems
3rd International Conference on COTS-Based Software Systems
12/01/2003Integrating Analysis and Design Methods for the Software Life Cycle
Integrating Analysis and Design Methods for the Software Life Cycle
12/01/2003It Takes Two
It Takes Two
12/01/2003Integrating the Architecture Tradeoff Analysis Method (ATAM) with the Cost Benefit Analysis Method (CBAM)
This technical note reports on a proposal to integrate the SEI ATAM (Architecture Tradeoff Analysis Method) and the CBAM (Cost Benefit Analysis Method).
12/01/2003SACAM: The Software Architecture Comparison Analysis Method
The report outlines the first version of the Software Architecture Comparison Analysis Method (SACAM). This method was created to provide rationale for an architecture selection process by comparing the fitness of architecture candidates for required systems.
11/01/2003Real-Time Application Development with OSEK: A Review of the OSEK Standards
This 2003 report examines the OSEK OS, OSEK COM, and OSEK OIL specifications from the perspective of a real-time application developer.
11/01/2003Architecture Reconstruction of J2EE Applications: Generating Views from the Module Viewtype
This report outlines the application of architecture reconstruction techniques to the Sun Microsystems' Duke's Bank system- Java2 Platform, Enterprise Edition/Enterprise JavaBeans (J2EE/EJB) application implemented mainly in Java.
10/01/2003Quality Attribute Workshops (QAWs), Third Edition
This report describes the newly revised QAW (Quality Attribute Workshop) and describes potential uses of the refined scenarios generated during it.
09/01/2003Rethinking the Software Life Cycle
Rethinking the Software Life Cycle
09/01/2003Changing Focus
Changing Focus
09/01/2003The Man with the Plan
The Man with the Plan
09/01/2003A Model Problem Approach to Measurement-to-Track Association
This report illustrates the use of model problems in the design of a system.
09/01/2003Preliminary Design of ArchE: A Software Architecture Design Assistant
This 2003 report presents a procedure for moving from a set of quality attribute scenarios to an architecture design that satisfies those scenarios.
09/01/2003Product Line Analysis for Practitioners
This 2003 technical report describes the addition of development requirements to product line analysis.
09/01/2003A Life-Cycle View of Architecture Analysis and Design Methods
This report examines the architecture-centric analysis and design methods that were created at the SEI between 1993 and 2003.
09/01/2003DoD Experience with the C4ISR Architecture Framework
This report discusses the context for using the C4ISRAF, the observations made during the interviews about its use, and the strengths and challenges of using it.
07/02/2003Gobus Toolkit 3 Core - A Grid Service Container Framework
The core infrastructure of Globus Toolkit 3 (GT3 Core) is based on the Open Grid Services Infrastructure (OGSI) primitives and protocols. The main design goal has been to make the OGSI technology easy to use, reuse, and extend when developing new Grid applications.
07/02/2003Organisational Interoperability Maturity Model for C2
A model of organisational interoperability is proposed in this paper which extends the LISI model into the more abstract layers of C2 Support, that is, the C2 Frameworks, C2 Processes and Information Management areas.
07/01/2003Predicting When Product Line Investment Pays
This 2003 report defines key factors to consider in taking an incremental approach to fielding a product line.
07/01/2003Documenting Software Architectures in an Agile World
06/01/2003What's the Difference Between Product Line Scope and Product Line Requirements?
What's the Difference Between Product Line Scope and Product Line Requirements?
06/01/2003Second International Conference on COTS-Based Software Systems
Second International Conference on COTS-Based Software Systems
06/01/2003Documenting Software Architectures
Documenting Software Architectures
06/01/20033rd International Workshop on Adoption-Centric Software Engineering
This report contains a set of papers that focus on overcoming barriers to adopting research tools. The papers were presented at the Third International Workshop on Adoption-centric Software Engineering (ACSE).
06/01/2003Proceedings of the System of Systems Interoperability Workshop (February 2003)
This report documents the model of interoperability presented and the findings from the System of Systems Interoperability Workshop, held in February 2003.
06/01/2003Fifth DoD Product Line Practice Workshop Report
This 2003 document summarizes the presentations and discussions from the Fifth Department of Defense (DoD) Product Line Practice Workshop, held in August 2002.
06/01/2003Interactions Among Techniques Addressing Quality Attributes
This report provides software architects a chart for determining the relationships among techniques that promote different architectural qualities.
06/01/2003The Evolution of Product Line Assets
The focus of this 2003 technical report is how evolutionary changes affect the various types of assets in a software product line.
05/19/2003The SAE Avionics Architecture Description Language (AADL) Standard: A Basis for Model-Based Architecture-Driven Embedded Systems Engineering
The AADL standard will include a UML profile useful for avionics, space, automotive, robotics and other real-time concurrent processing domains including safety critical applications.
05/03/2003Architecture, Design, Implementation
Architecture, design, and implementation are used informally in partitioning software specifications into three coarse strata of abstraction. These strata are not well-defined in either research or practice, causing miscommunication and needless debate.
04/19/2003Software Architecture in Practice (2nd Edition)
This book provides an easily accessible overview of software architecture. Anyone requiring a comprehensive overview of the software architecture field will benefit from this book.
03/01/2003The Good News About COTS
The Good News About COTS
03/01/2003Components As Products
Components As Products
03/01/2003DoD Architecture Framework and Software Architecture Workshop Report
This report summarizes the activities of the Workshop on the Department of the 2003 Defense Architecture Framework and Software Architecture workshop.
03/01/2003A Federation Object Model (FOM) Flexible Federate Framework
This 2003 report describes an approach to designing a domain framework that encapsulates expertise in developing an HLA federate by hiding RTI internal operations from the developer.
03/01/2003Deriving Architectural Tactics: A Step Toward Methodical Architectural Design
This 2003 technical report provides the status on the work being done by the SEI to understand the relationship between quality requirements and architectural design.
01/01/2003Defining the Terms Architecture, Design, and Implementation
Defining the Terms Architecture, Design, and Implementation
01/01/2003Quantifying the Value of Architecture Design Decisions: Lessons from the Field
This paper outlines experiences with using economic criteria to make architecture design decisions.
01/01/2003A Cost Model for Software System Families
Presented: January 2003
01/01/2003From Projects to Product Lines: A Product Line Economics Case Study
This presentation provides an overview of the SCAMPI appraisal method.
12/17/2002A Conceptual Framework for Network Centric Warfare
Presented: December 2002
12/01/2002Enterprise Integration
Enterprise Integration
12/01/2002Modernizing Legacy Systems
Modernizing Legacy Systems
12/01/2002Managing Risks in Modernizing Legacy Systems
Managing Risks in Modernizing Legacy Systems
12/01/2002SEI Hosts Software Product Line Conference
SEI Hosts Software Product Line Conference
12/01/2002E Pluribus Unum
E Pluribus Unum
12/01/2002Supporting the CANCEL Command Through Software Architecture
This report, published in 2002, details the responsibilities that a system must implement to support command cancellation.
10/01/2002SEI Architecture Analysis Techniques and When to Use Them
When analyzing system and software architectures, the Quality Attribute Workshop (QAW) and the Architecture Tradeoff Analysis Method (ATAM) can be used in combination to obtain early and continuous benefits.
10/01/2002Model-Based Verification: Abstraction Guidelines
This 2002 report presents abstraction techniques that can be used to build essential models of system behavior in the context of MBV and details a methodology for creating state machine models using those techniques.
09/30/2002Assessing the Economic Impacts of Architectural Decisions
The CBAM (Cost Benefit Analysis Method) extends the ATAM framework to elicit and model costs, benefits, and uncertainty.
09/01/2002Evolution of Quality Attribute Workshops as an Architecture-Evaluation Technique, The
The Evolution of Quality Attribute Workshops as an Architecture-Evaluation Technique
09/01/2002Building Systems from Commercial Components Using EPIC
Building Systems from Commercial Components Using EPIC
09/01/2002Software Architecture Book Provides Practical Guidance about Documentation
Software Architecture Book Provides Practical Guidance about Documentation
09/01/2002Product Lines Are Everywhere
Product Lines Are Everywhere
09/01/2002Product Line State of the Practice Report
This 2002 report outlines the state of software product line practice in industry. The report blends a case study with the results of a product line questionnaire.
09/01/2002Product Line Production Planning for the Home Integration System Example
This 2002 technical note examines the significant characteristics of the production plans of three hypothetical organizations that create product lines of home integration systems.
09/01/2002Making Architecture Design Decisions: An Economic Approach
This report describes the improvements to the CBAM (Cost Benefit Analysis Method) and provides a pilot case study conducted with NASA.
08/01/2002Model-Based Verification: An Engineering Practice
This 2002 report summarizes MBV and outlines the responsibilities of engineers engaged in Model-Based Verification.
08/01/2002Illuminating the Fundamental Contributors to Software Architecture Quality
This 2002 report presents the basic concepts of analysis models for two quality attributes-modifiability and performance, identifies a collection of tactics that can be used to control responses within those models, and discusses how to analyze the models in terms of these tactics.
06/24/2002Distributed Software: From Component Model to Software Architecture
This 2002 whitepaper presents a component model for redeveloping software.
06/01/2002Aligning Business Models, Business Architectures, and IT Architectures
Aligning Business Models, Business Architectures, and IT Architectures
06/01/2002Risk/Misfit Redux
Risk/Misfit Redux
06/01/2002Documenting Software Architecture: Documenting Interfaces
This report provides guidance for documenting the interfaces to software elements.
06/01/2002Use of the Architecture Tradeoff Analysis Method (ATAM) in Source Selection of Software-Intensive Systems
This report explains the role of software architecture evaluation in a source selection and describes the contractual elements that are needed to support its use.
06/01/2002Guidelines for Developing a Product Line Production Plan
This 2002 technical report provides guidance for creating, using, and evaluating a production plan, which is a description of how core assets are to be used to develop a product in a product line.
06/01/2002Quality Attribute Workshops, 2nd Edition
This report clarifies the context in which a QAW (Quality Attribute Workshop) is applicable, provides a rationale for developing the process and describes it in detail, and concludes with a list of lessons learned and a discussion of how these lessons have helped evolve the process to its current state.
03/01/2002Architectures for Adaptive Mobile Systems
Architectures for Adaptive Mobile Systems
03/01/2002Building Systems from Commercial Components: Classroom Experiences
Building Systems from Commercial Components: Classroom Experiences
03/01/2002Cost-Benefit Analysis Method
Cost-Benefit Analysis Method
03/01/2002SEI Architecture Practices Propel Successful Startup
SEI Architecture Practices Propel Successful Startup
03/01/2002Experiences in Architecture Reconstruction at Nokia
This 2002 report outlines details of past and current architecture reconstruction work on several systems at Nokia.
01/01/2002Model-Based Verification: Guidelines for Generating Expected Properties
This report presents a basic set of guidelines to facilitate the generation of expected properties in the context of Model-Based Verification.
01/01/2002Documenting Software Architecture: Documenting Behavior
This report describes ways to document the behavior of systems, subsystems, and components of software architecture.
12/01/2001Automating Design Search
Automating Design Search
12/01/2001Model-Based Verification: Analysis Guidelines
This technical note provides guidance for the analysis activity that occurs during the interpretation of results produced by model-checking tools.
12/01/2001Testing a Software Product Line
This report describes test-related activities that form the test process for a product line organization, along with techniques and activities that can meet these challenges.
12/01/2001Using Economic Considerations to Choose Among Architecture Design Alternatives
The SEI developed the CBAM (Cost Benefit Analysis Method), which incorporates the costs and benefits of architectural design decisions and provides an effective means of making such decisions. This paper reports on the application of this method to a real world case study.
11/01/2001Perspectives on Open Source Software
This 2001 report summarizes the results of a study of the benefits of pitfalls of using open source software.
10/03/2001Quality Attribute Design Primitives and the Attribute Driven Design Method
This paper discusses the understanding of quality attributes and their application to the design of a software architecture.
10/01/2001Framework Document: Model-Based Verification Pilot Study
This 2001 document describes the processes, activities, artifacts, and deliverables associated with an Engineering Practice Investigation of MBV.
10/01/2001Model-Based Verification: Scope, Formalism, and Perspective Guidelines
This report provides guidance for defining the scope, formalism, and perspective for applying MBV, a systematic approach to finding defects in software requirements, designs, or code.
10/01/2001Analyzing Enterprise JavaBeans Systems Using Quality Attribute Design Primitives
This report introduces the notion of quality attribute design primitives, which are architectural building blocks that target the achievement of one or sometimes several quality attribute requirements.
10/01/2001Architectural Refinement for the Design of Survivable Systems
This paper describes a process for systematically refining an enterprise system architecture to resist, recognize, and recover from deliberate, malicious attacks by applying reusable design primitives that help ensure the survival of the enterprise mission.
10/01/2001Model-Based Verification: Claim Creation Guidelines
This 2001 report describes a pattern-based approach to facilitate claim generation.
10/01/2001Applicability of General Scenarios to the Architecture Tradeoff Analysis Method
In this report, we compare the scenarios elicited from five ATAM (Architecture Tradeoff Analysis Method) evaluations with the scenarios used to characterize the quality attributes.
10/01/2001Fourth DoD Product Line Practice Workshop Report
The report summarizes the workshop presentations and discussions from the Fourth Department of Defense (DoD) Software Product Line Practice Workshop, held in March 2001.
09/01/2001Economic Modeling of Software Architectures
Economic Modeling of Software Architectures
09/01/2001Design and Search
Design and Search
09/01/2001Software Product Line Practice Patterns
Software Product Line Practice Patterns
09/01/2001Fifth Product Line Practice Workshop Report
This report synthesizes the workshop presentations and discussions from the Fifth Software Engineering Institute Product Line Practice Workshop, held in December 2000.
08/20/2001Software Product Lines: Practices and Patterns
This book provides a framework of specific practices, with detailed case studies, to guide the implementation of product lines in your organization.
08/01/2001Documenting Software Architectures: Organization of Documentation Package
That comprehensive handbook outlines how to produce high-quality documentation for software architectures.
08/01/2001Architecture Reconstruction Guidelines
This report describes the process of architecture reconstruction using the Dali architecture reconstruction workbench.
08/01/2001Proceedings of the Real-Time Systems Engineering Workshop
This report presents the results of a workshop on real-time systems engineering. The workshop was held as part of the SEI Symposium in Washington, DC, during September 2000.
07/01/2001Legacy System Modernization Strategies
This 2001 report discusses alternative development approaches for incrementally modernizing legacy systems.
06/01/2001Using Quality Attribute Workshops to Evaluate Early-Stage Architecture Design Decisions
Using Quality Attribute Workshops to Evaluate Early-Stage Architecture Design Decisions
06/01/2001Building Systems from Commercial Components Using Model Problems
Building Systems from Commercial Components Using Model Problems
06/01/2001Software Architecture Evaluation: A Key to System Success
Software Architecture Evaluation: A Key to System Success
06/01/2001Real-Time Systems Engineering: Lessons Learned from Independent Technical Assessments
This 2001 paper contains observations, recurring themes, trends, and lessons learned about systems development as derived from real-time/mission-critical programs that have been reviewed over the last three years.
06/01/2001Options Analysis for Reengineering (OAR): A Method for Mining Legacy Assets
OAR is a systematic, architecture-centric, decision-making method for mining existing components for a product line or new software architecture.
05/18/2001Managing Variability in Software Architectures
This paper presents experience with explicitly managing variability within a software architecture.
05/01/2001Quality Attribute Workshops
This report describes the QAW (Quality Attribute Workshop) approach, which is a method for evaluating a software-intensive system architecture during the acquisition phase of major programs.
05/01/2001SEI Workshop on Software Architecture Representation, 16-17 January 2001
This report summarizes the discussions from the 2001 Architecture Representation Workshop, where five leading software architects and practitioners were invited to discuss aspects of the architecture representation with senior members of the SEI technical staff.
04/01/2001Guidance on Commercial-Based and Open Systems for Program Managers
This 2001 document discusses various risks and provides guidance that may be used to mitigate those risks.
04/01/2001Product Line Analysis: A Practical Introduction
This 2001 report provides a practical introduction to product line requirements modeling and describes product line analysis in the context of product line development.
03/01/2001Architecture Mechanisms
Architecture Mechanisms
03/01/2001Advancing the State of Software Product Line Practice
Advancing the State of Software Product Line Practice
03/01/2001Achieving Usability Through Software Architecture
This paper outlines an approach to improving the usability of software systems by means of software architectural decisions.
12/01/2000Quality Attribute Design Primitives
This report addresses mechanisms that significantly affect quality attribute behavior and have sufficient content for analysis.
12/01/2000Improving Predictability in Embedded Real-Time Systems
This 2000 paper discusses a model-based architectural approach for improving predictability of performance in embedded real-time systems.
12/01/2000Guidance on Commercial-Based and Open Systems for Coast Guard Program Managers
This 2000 report is intended for Coast Guard program and assistant program managers who will acquire systems containing commercial software products while adopting an open system strategy.
12/01/2000Third DoD Product Line Practice Workshop Report
This report synthesizes the presentations and discussions of the Third Department of Defense Product Line Practice Workshop held in March 2000.
10/01/2000Application of the Architecture-Based Design Method to the Electronic House, An
This report elaborates an example of the application of the ABD (Architecture-Based Design) method to designing software architecture.
10/01/2000Simplex Architecture Performance and Cost
The Simplex Architecture facilitates the building of dependable and upgradable real-time systems. Before using the technology, potential users want to know more about the costs of adopting the Simplex paradigm compared to the benefits of using it. This paper examines Simplex performance and the costs associated with its use.
09/01/2000Wheels Within Wheels: Model Problems in Practice
Wheels Within Wheels: Model Problems in Practice
09/01/2000ATAM: Method for Architecture Evaluation
This report presents technical and organizational foundations for performing architectural analysis, and presents the SEI's ATAM, a technique for analyzing software architectures.
09/01/2000An Evaluation Theory Perspective of the Architecture Tradeoff Analysis Method (ATAM)
The target, evaluation criteria, yardstick, data-gathering techniques, synthesis techniques and evaluation process of ATAM are identified and analyzed in this report.
08/01/2000Active Reviews for Intermediate Designs
This paper describes ARID, a piloted software design review technique.
06/01/2000Quality Attribute Workshop
Quality Attribute Workshop
05/01/2000Modeling the Space Shuttle Liquid Hydrogen Subsystem
This 2000 report describes experiences with modeling the liquid hydrogen subsystem of the space shuttle.
04/01/2000Attribute-Based Architectural Styles
Attribute-Based Architectural Styles
03/01/2000Just In Time Component Competence
Just In Time Component Competence
03/01/2000Quality Attribute Workshops
Quality Attribute Workshops
03/01/2000An Architectural Approach to Software Cost Modeling
An Architectural Approach to Software Cost Modeling
03/01/2000COTS and Risk: Some Thoughts on How They Connect
The COTS Spot - Volume 3 | Issue 1 | March 2000
03/01/2000Probing Product Line Practices
Probing Product Line Practices
03/01/2000Software Architecture Documentation in Practice: Documenting Architectural Layers
The 2000 report lays out our approach and organization for the book-in-planning titled Software Architecture Documentation in Practice, and provides guidance for the layer diagram.
02/01/2000Basic Concepts of Product Line Practice for the DoD
This 2000 report provides background information to a series of SEI reports designed to provide concise and usable information about product line acquisition practices.
02/01/2000Fourth Product Line Practice Workshop Report
This report synthesizes the results of the 1999 Product Line Practice Workshop, which described practices and issues associated with tool support for software product lines.
01/01/2000The Architecture Based Design Method
This paper presents the Architecture Based Design (ABD) method for designing the high-level software architecture for a product line or long-lived system.
01/01/2000Quality Attribute Workshop Participants Handbook
This report describes the 1) process we use to conduct QAW (Quality Attribute Workshop), 2) information required, 3) suggested tools, and 4) expected outcomes of QAWs.
01/01/2000Construction and Deployment Scripts for COTS-Based, Open Source Systems
This 1999 report details the construction/deployment scripts for GEE (generic enterprise ensemble), a prototypical three-tier information system incorporating a number of commercial off-the-shelf (COTS) products.
12/01/1999The Elusive Search for Categories
The Elusive Search for Categories
12/01/1999Software Architecture Evaluation in the DoD Systems Acquisition Context
Software Architecture Evaluation in the DoD Systems Acquisition Context
10/01/1999Attribute-Based Architectural Styles
This report establishes a common format for documenting ABASs in the hope that they will become the foundation for anyone who is doing system design and analysis.
10/01/1999Architectural Evaluation of Collaborative Agent-Based Systems
This report identifies features in agent-based systems that could be used to classify agent-system architectures and to guide the generation of scenarios applicable to these architectures.
10/01/1999Second DoD Product Line Practice Workshop Report
This report synthesizes the workshop presentations and discussions of the Second DoD Product Line Practice Workshop, held in March 1999.
09/01/1999The Net Effects of Product Lines
The Net Effects of Product Lines
09/01/1999Who's in Charge Here?
Who's in Charge Here?
09/01/1999Perils and Joys of Reconstructing Architectures, The
The Perils and Joys of Reconstructing Architectures
09/01/1999A Scenario for Using the Product Line Practice Framework
A Scenario for Using the Product Line Practice Framework
09/01/1999A Framework for Software Product Line Practice
A Framework for Software Product Line Practice
09/01/1999Product Lines in Practice at Three Major Corporations
Product Lines in Practice at Three Major Corporations
09/01/1999Software Product Lines: A New Paradigm for the New Century
Software Product Lines: A New Paradigm for the New Century
09/01/1999DoD Legacy System Migration Guidelines
This report provides a set of DoD legacy system migration guidelines.
09/01/1999Options Analysis for Reengineering (OAR): Issues and Conceptual Approach
This 1999 report outlines the foundation of a structured and coherent method, based on the "horseshoe" model, that will help practitioners make appropriate reengineering choices.
08/01/1999Guidelines for Developing a Product Line Concept of Operations
This 1999 report provides guidelines for an organization that is developing a CONOPS document.
08/01/1999Simplex in a Hostile Communications Environment: The Coordinated Prototype
This report describes an approach to using Simplex to construct a COTS-based computer system capable of coordinated real-time motion control in a hostile communications environment.
07/01/1999Architecture Tradeoff Analyses of C4ISR Products
This report describes how various C4ISR products can be used in the context of an ATAM evaluation and their relative value for generating quality attribute-specific scenarios required for an ATAM evaluation.
07/01/1999Custom vs. Off-the-Shelf Architecture
This report compares GEE-based solutions and off-the-shelf solutions based on the EJB specification.
06/01/1999Requirements and COTS-Based Systems: A Thorny Question Indeed
Requirements and COTS-Based Systems: A Thorny Question Indeed
06/01/1999Using Scenarios in Architecture Evaluations
Using Scenarios in Architecture Evaluations
06/01/1999Architecture-Based Development
This report presents a description of architecture-centric system development.
06/01/1999Theory and Practice of Enterprise JavaBean Portability
05/01/1999Building Blocks for Achieving Quality of Service with Commercial Off-the-Shelf (COTS) Middleware
In this report, the authors discuss building blocks and techniques for fault-tolerant, real-time applications based on CORBA.
04/01/1999Introduction to Software Engineering Practices Using Model-Based Verification, An
This is an introductory report on the use of model-based verification techniques within software development and upgrade practices.
03/01/1999COTS Product Evaluation and System Design
COTS Product Evaluation and System Design
03/01/1999Analyzing Quality Attributes
Analyzing Quality Attributes
03/01/1999Third Product Line Practice Workshop Report
This report describes product line practices and analyzes issues in the areas of software engineering, technical management, and organizational management.
01/01/1999Software Architectural Transformation
This paper presents a concrete example of an architecturally-motivated reengineering task. In executing this task, the authors perform architecture reconstruction, reason about the reconstructed architecture, motivate an architectural transformation with new architectural quality requirements, and realize this architectural transformation via an automated code transformation.
12/01/1998Making Team Plans
Making Team Plans
12/01/1998COTS Evaluation in the Real World
COTS Evaluation in the Real World
12/01/1998Representing Software Architecture
Representing Software Architecture
11/01/1998Study of Practice Issues in Model-Based Verification Using the Symbolic Model Verifier (SMV), A
This report presents the results of a study on the practice issues involved in using the Symbolic Model Verifier (SMV) for model checking software systems.
09/01/1998DoD Security Needs and COTS-Based Systems
This monograph offers a "heads-up" to decision makers who are building information systems that have security constraints, who feel the market imperatives, and who want to make opportunistic use of what the market has to offer.
09/01/1998A Summary of DoD COTS-Related Policies
This Monograph examines seven documents that contain official guidance regarding the use of COTS products in Government systems.
09/01/1998Evaluation of COTS Products: Some Thoughts on the Process
Evaluation of COTS Products: Some Thoughts on the Process
09/01/1998Are Software Architects Like Building Architects?
Are Software Architects Like Building Architects?
09/01/1998Model-Based Verification: A Technology for Dependable System Upgrade
This 1998 report outlines the technological foundations of model-based verification for engineering software system upgrades.
08/01/1998The Architecture Tradeoff Analysis Method
07/01/1998Mapping MetaH into ACME
This 1998 report explores the translation of MetaH into ACME.
06/15/1998View Extraction and View Fusion in Architectural Understanding
This paper presents a workbench for architectural extraction called Dali, and shows how Dali supports flexible extraction and fusion of architectural information. Its use is described through two extended examples of architectural reconstruction.
06/01/1998Case Study: Evaluating COTS Products for DoD Information Systems
This monograph reports on a DoD program that undertook a detailed evaluation effort that examined several commercial products as candidates for a large information system.
06/01/1998Case Study: Significant Schedule Delays in a Complex NDI-Based System
The expected audience for this monograph is a general audience, and the major issues tend to be more programmatic and managerial rather than purely technical.
05/01/1998Report on the Second International Workshop on Development and Evolution of Software Architectures for Product Families
This report summarizes the discussions and outcomes of the Second International Workshop on Development and Evolution of Software Architectures for Product Families, held in February 1998.
05/01/1998DoD Product Line Practice Workshop Report
This report synthesizes the results of the 1998 product line workshop that described selected practices and identified barriers and enablers to achieving these practices within the DoD.
05/01/1998Steps in an Architecture Tradeoff Analysis Method: Quality Attribute Models and Analysis
This paper presents some of the steps in an emerging architecture tradeoff analysis method (ATAM).
04/01/1998Assessment of CORBA and POSIX Designs for FAA En Route Resectorization
This report addresses the use of different technologies and an architectural tradeoff approach on a typical En Route system problem.
04/01/1998Second Product Line Practice Workshop Report
This 1998 report synthesizes the presentations and discussions from the Second SEI Product Line Practice Workshop, held in November 1997.
03/09/1998Assessing Architectural Complexity
This paper describes a system, called IAPR, that aids in architectural exploration and measurement by attempting to match patterns to an architecture.
02/02/1998Isolating Faults in Complex COTS-Based Systems
This monograph provides an overview of a method for isolating and overcoming faults in COTS-based systems.
02/02/1998COTS and Open Systems
This monograph offers a practical rather than theoretical approach to the issues of COTS and open systems.
01/01/1998Approaches to Legacy System Evolution
This report outlines a comprehensive system evolution approach that incorporates an enterprise framework for the application of the promising technologies in the context of legacy systems.
01/01/1998Study in the Use of CORBA in Real-Time Settings: Model Problems for the Manufacturing Domain, A
In this report, we describe the application of an off-the-shelf ORB to two real-time model problems.
01/01/1998Requirements for Integrating Software Architecture
This paper discusses the requirements and a generic framework for the integration of architectural and code-based reengineering tools. It was presented at the 1998 Working Conference on Reverse Engineering, Honolulu HI, October 1998 and was written by Rick Kazman, S. G. Woods, and S. J. Carriere.
11/10/1997Classifying Architectural Elements as a Foundation for Mechanism Matching
This paper presents a set of well known but informally described software architectural elements used in system composition, and taxonomizes them under a basic set of characteristic features.
11/10/1997An Approach to Software Architecture Analysis for Evolution and Reusability
This paper presents an approach to capturing and assessing software architectures for evolution and reuse. The approach consists of a framework for modeling various types of relevant information and a set of architectural views for reengineering, analyzing, and comparing software architectures.
11/01/1997Workshop on COTS-Based Systems
This report documents the proceedings of the first Workshop on COTS-Based Systems, held at the SEI in June 1997.
10/01/1997Enterprise Framework for the Disciplined Evolution of Legacy Systems
This 1997 report describes an enterprise framework that characterizes the global environment in which system evolution takes place and provides insight into the activities, processes, and work products that shape the evolution of legacy systems.
10/01/1997Playing Detective: Reconstructing Software Architecture from Available Evidence
This paper presents Dali, an open, lightweight workbench that aids an analyst in extracting, manipulating, and interpreting architectural information.
09/01/1997Case Study: Correcting System Failure in a COTS Information System``
This monograph provides an in-depth technical study about a COTS-based information system made up of several commercial components.
08/01/1997Workshop on the State of the Practice in Dependably Upgrading Critical Systems
This report describes the results of the Workshop on the State of the Practice in Dependably Upgrading Critical Systems held April 16-17, 1997 at the Software Engineering Institute.
07/01/1997Perspective on the State of Research in Fault-Tolerant Systems, A
This 1997 report presents a perspective on research in fault tolerance as it relates to dependability in software-based systems and attempts to describe the current state of, and outline future directions for, this broad research field.
06/02/1997Assembling Large Systems from COTS Components
This monograph, the first in a series, illuminates some general issues that can arise when pursuing a COTS-based approach in complex, heterogeneous systems.
06/01/1997Product Line Practice Workshop Report
This 1997 report synthesizes the presentations and discussions from the 1996 SEI Product Line Practice Workshop.
05/01/1997Principles for Evaluating the Quality Attributes of a Software Architecture
This report describes a few principles for analyzing a software architecture to determine if it exhibits certain quality attributes.
01/01/1997Recommended Best Industrial Practice for Software Architecture Evaluation
This report details the results of two workshops on software architecture evaluation, held at the SEI in 1996.
11/01/1996Scenario-Based Analysis of Software Architecture
This paper presents an experiential case study illustrating the methodological use of scenarios to gain architecture-level understanding and predictive insight into large, real-world systems in various domains.
11/01/1996Investment Analysis of Software Assets for Product Lines
This 1996 report introduces an approach that will help managers make resource allocation decisions.
06/01/1996Transitioning Domain Analysis: An Industry Experience
This report provides an industry example in the planning and execution of a research project using feature-oriented domain analysis (FODA).
03/15/1996Survey of Architecture Description Languages. A
This paper summarizes a taxonomic survey of ADLs that is in progress. This paper summarizes a taxonomic survey of ADLs that is in progress. Preliminary results allow conclusions to be drawn about what constitutes an ADL, and how contemporary ADLs differ.
03/01/1996Gadfly: An Approach to Architectural-Level System Comprehension, The
This paper describes the Gadfly, an approach for developing narrowly-focused, reusable domain models that can be integrated and (re)used to aid in the process of top-down system comprehension.
02/01/1996State of the Practice Report: Problems in the Practice of Performance Engineering
As systems have performance requirements, sometimes dominant and explicit, and other times subordinate and implicit. Despite the pervasiveness and importance of performance requirements, performance problems persist. To help us understand why, we sponsored a workshop in performance engineering and conducted some structured interviews with software contractors. This report summarizes our observations.
02/01/1996Software Architecture: An Executive Overview
This report summarizes software architecture for an intended audience of mid to senior level management.
01/01/1996Tool Support for Architecture Analysis and Design
This position paper first presents a set of requirements that an ideal tool for architectural design and analysis, and then presents a tool—called SAAMtool—that meets most, but not all, of these requirements.
01/01/1996Coming Attractions in Software Architecture
This 1996 report identifies a set of promising lines of research related to software architecture and architecture-based system development.
12/01/1995Quality Attributes
This report describes efforts to develop a unifying approach for reasoning about multiple software quality attributes.
11/15/1995From Subroutines to Subsystems: Component-Based Software Development
This whitepaper provides a conceptual overview of component-based software development (CBSD) and discusses how CBSD is changing the way large software systems are developed.
09/15/1995Formal Methods in Describing Architectures
This paper presents Modechart, a specification language for hard-real-time embedded computer systems developed at the University of Texas at Austin. It presents the Modechart paradigm as an example of a fruitful trend for ADL research.
09/01/1995Distributed System Design Using Generalized Rate Monotonic Theory
This 1995 paper reviews the rate monotonic scheduling theory, examines the architectural requirements for the use of the theory, and provides an application example.
09/01/1995Concept of Operations for ESC's Product Line Approach
This report describes ConOps and transition strategy for the product line approach to software systems development at the Air Force ESC.
07/01/1995A Software Architecture for Dependable and Evolvable Industrial Computing Systems
This paper gives a brief overview of the underlying technologies of the Simplex architecture, which was developed to support safe and reliable online upgrade of hardware and software components.
06/01/1995Proceedings of the SEI/MCC Symposium on the Use of COTS in Systems Integration
These report includes the presentations and main highlights from the discussions of the SEI/MCC Symposium on the Use of COTS in Systems Integration, held at the SEI in January 1995.
06/01/1995OOD Paradigm for Flight Simulators (2nd Edition), An
This report presents a paradigm for object-oriented implementation of flight simulators. It is a result of work on the ADA Simulator Validation Program (ASV) carried out by members of the technical staff at the SEI.
04/14/1995An Architectural Analysis Case Study:Internet Information Systems
This paper presents a method for analyzing systems for nonfunctional qualities from the perspective of their software architecture and applies this method to the field of Internet information systems (IISs).
04/14/1995Understanding Architectural Influences and Decisions in Large-System Projects
This paper discusses the approach taken in a pilot study to uncover the correlation, if any, between architectural influences and architectural decisions in large-scale, software-intensive development projects.
04/14/1995Features of Architecture Description Languages
This 1995 whitepaper provides an overview of Architecture description languages (ADLs), an emerging notation for software architecture models.
03/01/1995Case Study in Assessing the Maintainability of Large, Software-Intensive Systems, A
This paper presents a case study in assessing the maintainability of a large, software intensive system. The techniques used are described, and their strengths and weaknesses discussed.
12/01/1994Characteristics of Higher Level Languages for Software Architecture
System designers use two primary ways of defining software architecture; this paper explains why neither alternative is adequate.
11/15/1994Software Architecture Renaissance, The
The increasing importance of software in systems is also driving the software architecture renaissance. This article provides a brief overview of some important architecture related efforts.
11/01/1994Toward Deriving Software Architectures from Quality Attributes
08/01/1994Experience with a Course on Architectures for Software Systems, Part II: Educational Materials
04/01/1994Rate Monotonic Analysis for Real-Time Systems: Instructor's Guide
This report helps instructors teach rate monotonic analysis (RMA) to graduate and undergraduate software, computer, and electrical engineering students.
01/01/1994From Domain Models to Architectures
This whitepaper was presented at the Workshop on Software Architecture, USC Center for Software Engineering, Los Angeles, 1994, by Paul Clements.
01/01/1994An Introduction to Software Architecture
This paper provides an introduction to the emerging field of software architecture.
12/01/1993A Taxonomy of Coordination Mechanisms Used in Real-Time Software Based on Domain Analysis
This 1993 proposes a taxonomy of the coordination mechanisms for the synchronization and communication of concurrent processes.
10/01/1993Use of ASN.1 and XDR for Data Representation in Real-Time Distributed Systems, The
This report provides an overview of two standards that are used for data specification and representation in distributed systems.
08/01/1993A Practitioner's Handbook for Real-Time Analysis: Guide to Rate Monotonic Analysis for Real-Time Systems
This book contains a collection of quantitative methods that enable real-time systems developers to understand, analyze, and predict the timing behavior of many real-time systems.
08/01/1993Structural Modeling: An Application Framework and Development Process for Flight Simulators-
This paper presents the structural modeling approach, an application framework and development process for the construction of flight simulators.
06/01/1993Safety-Critical Software: Status Report and Annotated Bibliography
Many systems are deemed safety-critical and these systems are increasingly dependent on software. Much has been written in the literature with respect to system and software safety. This report summarizes some of that literature and outlines the development of safety-critical software. Techniques for hazard identification and analysis are discussed. Further, techniques for the development of safety-critical software are mentioned. A partly annotated bibliography of literature concludes the report.
04/01/1993Distributed Real-Time System Design: Theoretical Concepts and Applications
This 1993 paper describes the use of generalized rate monotonic scheduling theory for the design and analysis of a distributed real-time system.
03/01/1993Software Architectures for Shared Information Systems
02/01/1993Formal Specification and Verification of Concurrent Programs
This 1993 module introduces formal specification of concurrent software and verification of the consistency between concurrent programs and their specifications.
06/01/1992Application of Feature-Oriented Domain Analysis to the Army Movement Control Domain and Appendices A-I
This report documents an analysis of the army movement control domain performed by the SEI and a team of experts from the army.
02/01/1992ADA Validation Tests for Rate Monotonic Scheduling Algorithm
This report presents a set of tests for checking whether an ADA runtime system properly supports certain rate monotonic scheduling algorithms, specifically, the basic inheritance and priority ceiling protocols.
02/01/1992Experience with a Course on Architectures for Software Systems Part I: Course Description
The "software architecture" level of software design was the subject of a course taught at the SEI in 1992. This report presents the motivation for the course, the content and structure of the current version, and plans for improving the next version.
02/01/1992Conceptual Framework for System Fault Tolerance, A
This document provides vocabulary, discusses system failure, describes mechanisms for making systems fault tolerant, and provides rules for developing fault tolerant systems.
01/01/1992Reuse-Based Software Development Methodology, A
Kang et al present a reuse-based software development methodology developed by the Software Engineering Institute that is meant to identify the applicability of reusable resources.
12/01/1991Design Specifications for ADAptive Real-Time Systems
This 1991 report presents a design specification method that treats a software architecture as a set of runtime entities.
10/01/1991Fault Tolerant Systems Practitioner's Workshop June 10-11, 1991
This 1991 report summarizes workshop discussions about state of the practice in fault tolerant systems and barriers to the deployment of fault tolerant systems.
09/01/1991Application-Level Implementation of the Sporadic Server, An
The purpose of this paper is to introduce a sporadic server algorithm that can be implemented as an application-level task, and that can be used when no runtime or operating system level implementation of the sporadic server is available.
07/01/1991Issues in Real-Time Data Management
This 1991 report explores issues related to the use of database management technology in support of real-time systems programming.
03/01/1991Rate Monotonic Analysis for Real-Time Systems
In this report, we review important decisions in the development of RMA. Our experience indicates that technology transition considerations should be embedded in the process of technology development from the start, rather than as an afterthought.
12/01/1990Generic Avionics Software Specification
This 1990 report informally specifies the general functions, data interactions, and timing constraints for an avionics mission control computer system typical of those found in some existing U.S. Navy/Marine Corps aircraft.
11/01/1990Studying Software Architecture Through Design Spaces and Rules
The 1990 report describes a multi-dimensional design space that classifies system architectures.
11/01/1990Feature-Oriented Domain Analysis (FODA) Feasibility Study
This 1990 report establishes methods for performing a domain analysis and describes the products of the domain analysis process.
11/01/1990A Design Space and Design Rules for User Interface Software Architecture
This report describes the architecture of user interface systems, using a design space that identifies the key architectural choices and classifies the available alternatives.
07/01/1990Analysis of Input/Output Paradigms for Real-Time Systems, An
This paper illustrates how to build a mathematical model of the schedulability of a real-time system, taking into consideration such factors as preemption, synchronization, non-preemptibility, interrupts, and process idle time.
06/01/1990Experiences Porting the Distributed ADA Real-Time Kernel
Boeing Military Airplanes and The Wichita State University became co-acceptors of a copy of DARK for the purpose of demonstrating a port to a 68000-based distributed architecture. This report describes the experiences in accomplishing the port.
06/01/1990Hartstone Benchmark Results and Analysis
This 1990 report describes the results obtained by running Version 1.0 of the Hartstone benchmark, an ADA implementation of one of the requirements, on a number of compiler/target processor combinations.
06/01/1990Domain Analysis Bibliography, A
This 1990 document presents a bibliography of references on domain analysis.
05/01/1990Implementing Sporadic Servers in ADA
This 1990 paper presents the data structures and algorithms for implementing sporadic servers in real-time systems programmed in ADA.
12/01/1989Comparative Evaluations of Four Specification Methods for Real-Time Systems
This report describes the evaluation of four methods for the specification of system and software requirements for time-critical systems.
09/01/1989Real-Time Software Engineering in ADA: Observations and Guidelines
This 1989 report presents techniques for controlling devices with Ada and several Ada tasking paradigms for managing concurrency.
06/01/1989Hartstone: Synthetic Benchmark Requirements for Hard Real-Time Applications
This 1989 paper defines the operational concept for a series of benchmark requirements to be used to test the ability of a system to handle hard real-time applications.
04/01/1989Real-Time Locking Protocol, A
This 1989 report examines a priority-driven, two-phase lock protocol called the read- or write-priority ceiling protocol.
04/01/1989Real-Time Scheduling Theory and ADA
This 1989 report reviews important results of a priority-based scheduling theory and discusses implications for the Ada tasking model.
04/01/1989Implementing Priority Inheritance Algorithms in an ADA Runtime System
This 1989 paper presents a high-level design for implementing the basic priority inheritance and priority ceiling protocols in an ADA runtime system.
04/01/1989Scheduling Sporadic and Aperiodic Events in a Hard Real-Time System
A real-time system consists of both aperiodic and periodic tasks. Periodic tasks have regular arrival times and hard deadlines. Aperiodic tasks have irregular arrival times and either soft or hard deadlines. In this paper, we present a new algorithm, the Sporadic Server algorithm, that greatly improves response times for soft-deadline aperiodic tasks and can guarantee hard deadlines for both periodic and aperiodic tasks. The operation of the Sporadic Server algorithm, its performance, and schedulability analysis are discussed and compared with previous, published aperiodic service algorithms.
02/01/1989Performance and Reliability Enhancement of the Durra Runtime Environment
This 1989 report describes a new design for the Durra runtime environment that addresses these two issues.
12/01/1988Introduction to Software Verification and Validation
This curriculum module provides an overview needed to understand in-depth curriculum modules in the verification and validation area.
12/01/1988Formal Verification of Programs
This 1988 module introduces formal verification of programs, dealing primarily with proofs of sequential programs, but also with consistency proofs for data types and deduction of particular behaviors of programs from their specifications. This module introduces formal verification of programs, dealing primarily with proofs of sequential programs, but also with consistency proofs for data types and deduction of particular behaviors of programs from their specifications.
11/01/1988Real-Time Scheduling Theory and ADA (1988)
This 1988 report reviews results of a priority-based scheduling theory, illustrates its applications with examples, discusses its implications for the Ada tasking model, and suggests workarounds.
11/01/1988Mode Change Protocols for Priority-Driven Preemptive Scheduling
This 1988 report discusses a protocol for accomplishing mode change in the context of a priority-driven preemptive scheduling environment.
10/01/1988Functional Performance Specification for an Inertial Navigation System
This 1988 report defines the functional and performance requirements for the inertial navigation system simulator that interfaces with the ECS simulator.
10/01/1988Functional Performance Specification for an External Computer System Simulator
This 1988 document defines the functional and performance requirements for the ECS simulator that interfaces with the inertial navigation system simulator.
09/01/1988Perspective on Software Reuse
This report presents a perspective to software reuse in the context of "ideal" development capabilities, which is intended to lead to a reuse strategy for software development.
03/01/1988A Practical Application of the Ceiling Protocol in a Real-Time System
This paper discusses real-time design issues that arise when using the priority ceiling protocol for real-time systems.
03/01/1988Priority Ceiling Protocol: A Method for Minimizing the Blocking of High-Priority ADA Tasks, The
The priority ceiling protocol is a new technique that addresses the priority inversion problem. Under the priority ceiling protocol, a high priority task can be blocked at most once by a lower priority task. This paper, written in 1988, defines how to apply the protocol to Ada.
12/01/1987ADA for Embedded Systems: Issues and Questions
This 1987 report addresses issues and questions related to the use of ADA for embedded systems applications.
12/01/1987Survey of Real-Time Performance Benchmarks for the Ada Programming Language, A
This 1987 survey provides a summary description of some of the major Ada benchmarks currently available and an evaluation of their applicability to the Real-Time Embedded Systems Testbed Project at the SEI.
12/01/1987Evolving Persistent Objects in a Distributed Environment
This paper considers a class of objects, called incrementally mutable objects, that are intermediate between mutable and immutable objects.
12/01/1987Prototype Real-Time Monitor: Executive Summary
This report summarizes the history, goals, and conclusions of the prototype real-time monitor development effort.
12/01/1987Annual Technical Report for ADA Embedded Systems Testbed Project
This technical report provides an overview of the results produced in the first year of the ADA Embedded Systems Testbed Project (through September 30, 1987).
12/01/1987ADA Performance Benchmarks on the Motorola MC68020: Summary and Results
This report documents the results obtained from running Ada performance benchmarks on a DEC VAXELN MicroVAX II using the DEC VAXELN Ada compiler.
11/01/1987VAXELN Experimentation: Programming a Real-Time Periodic Task Dispatcher Using VAXELN ADA 1.1
The purpose of this paper is to provide the reader with some technical information and observations ADA source code, and measurement results based on experimentation with respect to developing a real-time periodic task dispatcher in ADA.
11/01/1987Prototype Real-Time Monitor: Requirements
The requirements imposed by flight simulators and good software engineering practice on Ada systems force software engineers to seek new solutions to the problem of monitoring executing software. This report examines some of these requirements and, based on these requirements, defines a subset for implementation as a prototype real-time monitor (RTM).
11/01/1987Prototype Real-Time Monitor: User's Manual
This 1987 report defines the user interface to the prototype real-time monitor (RTM).
11/01/1987Prototype Real-Time Monitor: Design
The requirements imposed by flight simulators and good software engineering practice on Ada systems force software engineers to seek new solutions to the problem of monitoring executing software. This report examines some of these requirements and, based on these requirements, defines a subset for implementation as a prototype real-time monitor (RTM).
11/01/1987Prototype Real-Time Monitor: ADA Code
This report documents the ADA code of the prototype real-time monitor (RTM).
11/01/1987Criteria for Constructing and Using an ADA Embedded System Testbed
This report lists criteria used in five aspects of the project: hardware configuration, software configuration, real-time application, ADA real-time experiments, and benchmarking and instrumentation techniques.
10/01/1987VAXELYN Experimentation: Programming a Real-Time Clock and Interrupt Handling Using VAXELYN ADA 1.1
This report describes the results of implementing an interrupt handler totally in ADA for a MicroVAX II/VAXELN 2.3 target system, the VAXELN 1.1 ADA compiler, and a KWV11-C programmable real-time clock.
12/01/1986Specifying Functional and Timing Behavior for Real-Time Applications
This 1986 report presents a notation and a methodology for specifying the functional and timing behavior of real-time applications for a heterogeneous machine.
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