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20 March, 2013: Modern Requirements Verification

by Communications Team on March 23, 2013  •   Print This Post Print This Post   •   

Ted Carney (Staff Writer)
After Action Report: On the evening of March 20th, Mr. William Fournier addressed a lively crowd in APL’s Parsons Auditorium with his talk entitled “Modern Requirements Verification: How Much Confidence Can You Afford?” Fournier described requirements testing as “confidence per dollars,” emphasizing the goal of maximizing confidence (in system capability), while operating under financial constraints. He also described the relationship between verification and test event planning, as well as the importance of “tight traceability” for large-scale systems. Additionally he indicated that not all requirements are equal and need prioritization. Fournier brought these issues to light through several case studies from missile defense systems.

From the Ground-Based Midcourse Defense (GMD) system to temperature stabilization, the examples highlighted several challenges for systems verification. Among the issues discussed were interrelated requirements, differing definitions of verification methods, test event objectives and priorities, and tight trace with requirements management tools. Also, one needs to keep in mind the amount of regression and reverification testing needed as new updates are made to the design/system. One of the new emerging trends is to have simulation and testing operating in parallel with the design cycle. These topics facilitated much discussion, as audience members chimed in with questions and conversation regarding missile defense system strategies and goals, precise definition(s) of confidence in testing, and recycling missile defense back through concept definition phase.

Mr. Fournier gave an interesting tour through the strategies and progress of requirements verification. See more by downloading his presentation:

>>Download Presentation Here<<

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