The Engagement Manager should collect evidence, such as work products, performance measures, results and improvement information derived from the Performance and Improvement Management stream and document the same in order to support the future use and improvement of the performance and improvement management process and associated assets. The information will be consolidated in the overall Service Engagement Close-Down Report, and will be made available to those who are (or who will be) planning and performing similar services, as well as those who are locally responsible for continual process improvement.