Latest Podcasts

Adapting the PSP to Incorporate Verified Design by Contract

March 27, 2014

William Nichols

William Nichols

"One of the powers of design is that you don’t just do a specific instance. You aren’t just thinking about a specific test case. You can start to expand the test case into ranges of behavior. "

Categories:

TSP

AADL and Aerospace

March 13, 2014

Myron Hecht

Myron Hecht

Peter Feiler

Peter Feiler

"That constant feedback between design and analysis, which now becomes a very tightly coupled loop in a very, very rapid process, is one of the key enablers to enable us to build complex safety-critical, life-critical, and mission-critical systems. "

Categories:

Software Architecture

Assuring Open Source Software

February 27, 2014

Kate Ambrose-Sereno

Kate Ambrose-Sereno

Naomi Anderson

Naomi Anderson

"Everyone seem to be playing in this space right now...The government certainly is looking at this for cost efficiencies. We’re seeing an emergence of social platforms. The software repositories are serving as an opportunity for developers who have an interest in similar products to work on each other’s software. "

Categories:

Software Assurance

Security Pattern Assurance through Roundtrip Engineering

February 13, 2014

Rick Kazman

Rick Kazman

"I can check at any point whether that architectural representation matches the stuff that has been developed, the stuff that I want to develop. That gives you control over the whole round-trip, and that’s what gives you predictability."

Categories:

Software Architecture

Applying Agile in the DoD: Fifth Principle

January 30, 2014

Mary Ann Lapham

Mary Ann Lapham

Suzanne Miller

Suzanne Miller

"Inside their own organization they don’t have this trust either because, again, they’ve been developed and trained in the old system. This is a different paradigm. We know that. "

Categories:

Acquisition Support

Software Assurance Cases

January 16, 2014

Charles

Charles "Chuck" Weinstock

"The point of the assurance case and the thing that the government is understanding is that it creates an artifact that allows them or their independent assessor…to evaluate that the evidence shows the claim’s been satisfied. "

Categories:

Software Assurance

AADL and Telecom Paris Tech

December 26, 2013

Etienne Borde

Etienne Borde

Peter Feiler

Peter Feiler

"The operating systems in safety-critical, embedded systems have very different characteristics than in standard computer systems. Of course, you can’t accept that your operating system fails the same way that your home operating system could fail. "

Categories:

Software Architecture

From Process to Performance-Based Improvement

December 12, 2013

Timothy A. Chick

Timothy A. Chick

Gene Miluk

Gene Miluk

"If you are at the top of your field, your competition is always nipping at your heels. If you’re not going to continuously innovate, they are going to catch up. "

Categories:

TSP

An Approach to Managing the Software Engineering Challenges of Big Data

November 27, 2013

Ian Gorton

Ian Gorton

John Klein

John Klein

"Testing these systems in all of the various ways that they may fail can be very difficult. So, it puts more importance on developing an architecture that satisfies good design principles in analyzing that architecture up front. "

Categories:

System of Systems

Situational Awareness Mashups

November 14, 2013

Soumya Simanta

Soumya Simanta

"Think about a mashup as a piece of software that combines data from different sources."

Applying Agile in the DoD: Fourth Principle

October 31, 2013

Mary Ann Lapham

Mary Ann Lapham

Suzanne Miller

Suzanne Miller

"Agile is an evolving learning environment. So, you have the top-level requirements. But, then, as you evolve and learn more about it, different requirements will emerge. And, you need to verify those with the actual operational end user. "

Categories:

Acquisition Support

Architecting Systems of the Future

October 17, 2013

Eric Werner

Eric Werner

"I think as we look at the curve of technology, graphical processing units (GPU’s) are only the start. People are building systems that have multiple GPUs in the same system. If you look at recent mobile phone releases, not only do you have a CPU and a GPU, but you have extra processing units—auxiliary processing units that might do special purpose stuff, for example, understanding motion sensors inside of a phone."

Acquisition Archetypes

September 26, 2013

William Novak

William Novak

"An acquisition archetype describes a situation where an action that’s being taken may appear to be sensible and…promising. At the same time, it has unintended, counterproductive effects to what was desired by that action. It might even make things worse than they were in the first place, even though it seemed to make perfect sense."

Categories:

Acquisition Support

Human-in-the-Loop Autonomy

September 12, 2013

James Edmondson

James Edmondson

"We focus on partial human-in-the-loop autonomy...No one wants a system that has no ability for a human to feedback into the system. You always want to have the ability to at least look into what it’s deciding. "

Mobile Applications for Emergency Managers

August 29, 2013

Adam Miller

Adam Miller

"The moment of opportunity exists now to prevent what’s going to happen in the future. We want to move further away from the reactive side of the spectrum and closer to the proactive and preventative side of the spectrum. "

Applying Agile in the DoD: Third Principle

August 15, 2013

Mary Ann Lapham

Mary Ann Lapham

Suzanne Miller

Suzanne Miller

"It has become evident within the DoD community and the government in general that we need to do software delivery sooner. So, how do we do that? "

Categories:

Acquisition Support

Application Virtualization as a Strategy for Cyber Foraging

July 25, 2013

Grace Lewis

Grace Lewis

"Actually, we call that 'the Starbuck’s scenario,' where basically you have all the resources you want. You’re relaxed. You’re sitting in your office, and you’re offloading whatever it is. You don’t need to worry about resources. At the edge, you do need to worry about that, because battery is expensive and heavy. The network is limited. You don’t know if you’re going to have connectivity around the clock."

Common Testing Problems: Pitfalls to Prevent and Mitigate

July 11, 2013

Donald Firesmith

Donald Firesmith

"Testing by itself just isn’t going to get the job done. Testing typically only finds 50 percent of the problems in the code. Since a lot of the problems are introduced during requirements engineering and architecting, it really makes sense to try to both prevent those problems up front and to find the problems then instead of during the typical test cycle when they’re much, much more expensive to fix."

Categories:

Acquisition Support

Joint Programs and Social Dilemmas

June 27, 2013

Bill Novak

Bill Novak

"Social dilemmas come in many different forms with different properties, which is partly why they can be hard to fix. That's why we keep seeing them, not just in acquisition but in public policy, economics, sociology, and many other areas. "

Categories:

Acquisition Support

Applying Agile in the DoD: Second Principle

June 13, 2013

Mary Ann Lapham

Mary Ann Lapham

Suzanne Miller

Suzanne Miller

"One of the key things, if you’re going to use Agile methods, is have enough definition up front of what you want to do, but not so much detail that you can’t learn, that it can’t change, because your environment changed. "

Categories:

Acquisition Support

Reliability Validation and Improvement Framework

May 23, 2013

Peter Feiler

Peter Feiler

"When you look at the problem, what we have done is identified four areas that are contributors to making a system that is heavily reliant on software of higher quality."

Categories:

Software Architecture

The Business Case for Systems Engineering

May 09, 2013

Joseph Elm

Joseph Elm

"The purpose of this research was to develop the quantitative evidence that would convince the skeptics of the value of systems engineering."

Applying Agile in the DoD: First Principle

April 18, 2013

Mary Ann Lapham

Mary Ann Lapham

Suzanne Miller

Suzanne Miller

"One of the things that we found with DoD and federal clients is that these principles are a little bit new. Some of them feel good—they feel like they fit within the DoD culture—and some of them don’t."

Categories:

Acquisition Support

The Evolution of a Science Project

April 04, 2013

Andrew P. Moore

Andrew P. Moore

William Novak

William Novak

"When the project first starts out, initially we’re ticking off progress at a pretty regular basis…but what can happen as you start nearing completion—the 70, 80, 90 percent done—is that progress as measured can begin to stall out. "

Categories:

Acquisition Support

What's New With Version 2 of the AADL Standard?

March 21, 2013

Peter Feiler

Peter Feiler

"Today almost everything is software intensive. If you have a car or an aircraft, they don’t work anymore if the software doesn’t work. "

Categories:

Software Architecture

The State of the Practice of Cyber Intelligence

March 07, 2013

Jay McAllister

Jay McAllister

Troy Townsend

Troy Townsend

"I think it’s becoming really important because 'cyber' transcends every aspect of business, whether you’re doing human resources or business intelligence or physical security."

Technology Readiness Assessments

February 21, 2013

Michael Bandor

Michael Bandor

"A TRA is not a documentation review. There’s a lot of planning that goes into it, six months to a year’s worth of planning out front. You actually get into design details, engineering studies, & test reports. It’s really a heavy-duty engineering level review. "

Categories:

Acquisition Support

Standards in Cloud Computing Interoperability

February 07, 2013

Grace Lewis

Grace Lewis

"The biggest fear is really vendor lock-in. People want to have the freedom to move from one cloud provider to another in case the relationship between them isn’t working, service-level agreements aren’t being met, other providers have better prices, or even if their provider goes out of business, which is not unusual in today’s world. If there aren’t standards, then moving between providers could be very difficult. "

The Latest Developments in AADL

January 17, 2013

Peter Feiler

Peter Feiler

Julien Delange

Julien Delange

"When people do the system-safety analysis, they are focused on the physical parts failing, and they understand that part. But the consequence of that in software today is still not very well understood. "

The Fundamentals of Agile

January 03, 2013

Tim Chick

Tim Chick

"Some people I've talked to, they really love agile. They love the techniques. And it's working really well for their team, for their project, but they are really having a hard time getting other projects in the organization to be just as successful as they are. That really is the key."

Categories:

TSP

Software for Soldiers who use Smartphones

December 20, 2012

Edwin Morris

Edwin Morris

"Now imagine you're walking into a village in Afghanistan. There may be some people that you or your colleagues have made contact with before that you know are friendly. It would be very useful to know about those people. In addition, it would be very useful to know about where there are potential threats. "

Architecting Service-Oriented Systems

December 06, 2012

Grace Lewis

Grace Lewis

"If you make an architectural decision that promotes interoperability or modifiability, this can have a negative impact on other qualities such as availability, reliability, security, or performance. Making these trade-offs is one of the hardest parts of architecting and designing any system. "

The SEI Strategic Plan

November 15, 2012

Bill Scherlis

Bill Scherlis

"The idea is to be able to develop highly capable, rapidly evolving, innovative systems, but to do so in a way where the risk of completion of projects is within the bounds of acceptability for major systems developments. "

Categories:

Software Assurance

Quantifying Uncertainty in Early Lifecycle Cost Estimation

November 01, 2012

Jim McCurley

Jim McCurley

Robert Stoddard

Robert Stoddard

"We needed a radically new method to address the type of information that is present that early in the lifecycle. "

Architecting a Financial System with TSP

October 18, 2012

Felix Bachmann

Felix Bachmann

Jim McHale

Jim McHale

"We did not have any evidence, any clear evidence, that they actually would work together. It was just driven by the necessity to help that customer."

Categories:

Software Architecture, TSP

The Importance of Data Quality

October 04, 2012

Dave Zubrow

Dave Zubrow

"It's always going to cost you more to fix it after the fact, and it’s very hard to go back to the point of origin and correct data once it’s entered the system. Now, our specific research last year was to investigate the use of some statistical techniques, primarily associated with outlier detection. "

Misaligned Incentives

September 20, 2012

Bill Novak

Bill Novak

"Misaligned incentives usually occur in the absence of well-designed rules that control the rewards or penalties for participants. The underlying idea is that unless the rules incentivize them to do otherwise, people and organizations both tend to act in their own self interest, which may not always be what was wanted."

Categories:

Acquisition Support

Cloud Computing for the Battlefield

September 04, 2012

Grace A. Lewis

Grace A. Lewis

"In essence cloudlets are localized, lightweight servers, very lightweight, that are running one or more virtual machines. The idea is that soldiers can offload expensive computations from their handheld mobile devices onto these virtual machines. "

An Architecture-Focused Measurement Framework for Managing Technical Debt

September 04, 2012

Ipek Ozkaya

Ipek Ozkaya

"Of course the other big question is, do we really need to go into a quantifiable aspect of debt, or is it good enough to just state in the metaphor realm? I tend to believe that if we can't measure it, we can't control it."

Categories:

Software Architecture

Agile Acquisition

September 04, 2012

Mary Ann Lapham

Mary Ann Lapham

Suzanne Miller

Suzanne Miller

"Today the Department of Defense needs to acquire software faster than it ever has in the past. "

Categories:

Acquisition Support

How a Disciplined Process Enhances & Enables Agility

September 04, 2012

Bill Nichols

Bill Nichols

"The biggest problem today is software is getting bigger and bigger. The big question naturally is how do you scale? How do you make this work for larger organizations, for larger project sizes? Things that work within a small team, with people that can talk face-to-face, don't necessarily scale when you go to bigger projects."

Categories:

TSP

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