Enterprise Framework for the Disciplined Evolution of Legacy Systems
• SEI Report
Publisher
Software Engineering Institute
CMU/SEI Report Number
CMU/SEI-97-TR-007Topic or Tag
Abstract
Many organizations are planning to "emigrate" their legacy systems to distributed open system environments or a single product line of systems. Many of these efforts are often less than successful because they concentrate on a narrow set of software issues without fully considering a broader set of enterprise-wide management and technical issues. This 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 disciplined evolution of legacy systems. Exemplary checklists are included to identify critical enterprise issues corresponding to each of the framework's elements. Preliminary results indicate that the enterprise model is a useful tool for probing and evaluating planned and ongoing system evolution initiatives. The model serves to draw out important global issues early in the planning cycle and provides insight for developing a synergistic set of management and technical practices to achieve a disciplined approach to system evolution.
Cite This SEI Report
Bergey, J., Northrop, L., & Smith, D. (1997, October 1). Enterprise Framework for the Disciplined Evolution of Legacy Systems. (SEI Report CMU/SEI-97-TR-007). Retrieved May 11, 2026, from https://www.sei.cmu.edu/library/enterprise-framework-for-the-disciplined-evolution-of-legacy-systems/.
@techreport{bergey_1997,
author={Bergey, John and Northrop, Linda and Smith, Dennis},
title={Enterprise Framework for the Disciplined Evolution of Legacy Systems},
month={{Oct},
year={{1997},
number={{CMU/SEI-97-TR-007},
howpublished={Carnegie Mellon University, Software Engineering Institute's Digital Library},
url={https://www.sei.cmu.edu/library/enterprise-framework-for-the-disciplined-evolution-of-legacy-systems/},
note={Accessed: 2026-May-11}
}
Bergey, John, Linda Northrop, and Dennis Smith. "Enterprise Framework for the Disciplined Evolution of Legacy Systems." (CMU/SEI-97-TR-007). Carnegie Mellon University, Software Engineering Institute's Digital Library. Software Engineering Institute, October 1, 1997. https://www.sei.cmu.edu/library/enterprise-framework-for-the-disciplined-evolution-of-legacy-systems/.
J. Bergey, L. Northrop, and D. Smith, "Enterprise Framework for the Disciplined Evolution of Legacy Systems," Carnegie Mellon University, Software Engineering Institute's Digital Library. Software Engineering Institute, SEI Report CMU/SEI-97-TR-007, 1-Oct-1997 [Online]. Available: https://www.sei.cmu.edu/library/enterprise-framework-for-the-disciplined-evolution-of-legacy-systems/. [Accessed: 11-May-2026].
Bergey, John, Linda Northrop, and Dennis Smith. "Enterprise Framework for the Disciplined Evolution of Legacy Systems." (SEI Report CMU/SEI-97-TR-007). Carnegie Mellon University, Software Engineering Institute's Digital Library, Software Engineering Institute, 1 Oct. 1997. https://www.sei.cmu.edu/library/enterprise-framework-for-the-disciplined-evolution-of-legacy-systems/. Accessed 11 May. 2026.
Bergey, John; Northrop, Linda; & Smith, Dennis. Enterprise Framework for the Disciplined Evolution of Legacy Systems. CMU/SEI-97-TR-007. Software Engineering Institute. 1997. https://www.sei.cmu.edu/library/enterprise-framework-for-the-disciplined-evolution-of-legacy-systems/