A good one page overview of UAT, which includes a suggestion for categorizing defects. The categories for UAT defects, which include a brief description, are described as: Show stopper, Critical problem, Major problem, Medium problem, Minor problem and Cosmetic problem. The short article also includes a description of, and the importance of, acceptance (sign off) criteria for acceptance testing.

This article focuses on Extreme Programming but gives a good insight into Acceptance Testing within the broader software testing context. Questions such as “How exactly do customers write acceptance tests” are answered. The web page is in the form of an introduction then discussion between posters, but all the posts are knowledgeable, including one for a guy who has experience acceptance testing flight simulators.

This article is for a class that needs to perform acceptance testing as part of a software project. The outline and instructions for performing acceptance testing are educational within themselves. There is also a reference to the Verification and Validation (V&V) process, includes an insightful comment that the acceptance test plan itself should be subjected to a ‘dry run’, as part of an overall verification process.