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Using the SEI Architecture Tradeoff Analysis Method to Evaluate WIN-T: A Case Study

September 2005 Technical Note
Paul C. Clements, John K. Bergey, Dave Mason

This report describes the application of the SEI ATAM (Architecture Tradeoff Analysis Method) to the U.S. Army's Warfighter Information Network-Tactical (WIN-T) system.

Publisher:

Software Engineering Institute

CMU/SEI Report Number

CMU/SEI-2005-TN-027

Abstract

The software architecture of a software-intensive system greatly determines system quality. Evaluating that architecture for fitness of purpose before the system is implemented or undergoes a major modification is a cost-effective approach to uncovering deficiencies early and reducing risk. When used appropriately, software architecture evaluations can have a favorable effect on a delivered or modified government system.

This technical note describes the application of the SEI Architecture Tradeoff Analysis Method (ATAM) to the U.S. Army's Warfighter Information Network-Tactical (WIN-T) system. The WIN-T system is being developed by a government-contractor team headquartered at the U.S. Army's Communications and Electronics Command (CECOM) in Ft. Monmouth, New Jersey. This technical note presents the WIN-T program context, the definition of software architecture, and the background of the WIN-T organization and system being evaluated. It also provides a general overview of the ATAM process, describes the application of the ATAM to the WIN-T system, presents important results, and summarizes the benefits the program received.