The evaluation of performance should include comparison and documentation of the predicted achievements for the Service Engagement to what was actually accomplished, especially in areas such as ability to meet agreed service levels, the cost of delivery, and the satisfaction of the client. The various summaries produced in the other streams of the method will be used as inputs to produce the overall Service Engagement Closedown Report.

More specifically, the Engagement Manager should analyze the original estimates, plan and final metrics to determine where and how significant variances occurred and identify the factors that led to or resulted from those variances. From this analysis, the Engagement Manager should recommend possible suggestions to improve the estimating approach used for the benefit of future Service Engagements. The management process itself should be included in any analysis to determine how efficient and effective it was on the Service Engagement.