At the end of the transition phase is the fourth important project milestone, the Product Release Milestone. At this point, you decide if the objectives were met, and if you should start another development cycle. In some cases this milestone may coincide with the end of the inception phase for the next cycle. The Product Release Milestone is the result of successful completion of the Project Acceptance Review.
The primary evaluation criteria for the transition phase involve the answers to these questions:
At the Product Release Milestone, the product is in production and the post-release maintenance cycle begins. This may involve starting a new cycle, or some additional maintenance release.