Each Customer Advocate (sometimes individual customers) creates an Acceptance Test Plan as a separate document. Test Cases are generated from the Use Cases and Collaboration Diagrams of the SRS and the Sequence Diagrams of the SDD. The ATP includes document assurance, usability testing and ensures the product matches the customers' expectations. The ATP defines the acceptance test from Use Cases, and includes collaboration and sequence diagrams.

is a compendium of test procedures that may be used to demonstrate compliance with certain specifications.