Feedback and Improvement
From the white paper:
The final quality assurance activity for the development cycle is to examine the information collected (including metrics) and the actual experience and results of the development effort. If possible, someone not directly involved with this project should conduct this process. Initial activities include one-on-one interviews with key project personnel, as well as distribution and collection of anonymous surveys among all participants.
From this information, distribute to all project personnel for commentary a draft of the project's evaluation, along with lessons learned and suggestions for improvement, and hold a formal inspection held. Assign action items as appropriate to implement the recommendations, and the inspected evaluation should become part of the project's baseline and stored appropriately for future examination.