what is PAT (Pre Acceptance Testing)?

Question

What is exactly PAT, When we will do the pre acceptance testing?

Solution 1

I don't think it's a widely-used term or part of a standard. Therefore, what exactly it means is organization-specific and should be defined in a glossary somewhere. More likely though you'll just have to ask people what it means.

Solution 2

Any testing done before acceptance testing.

This would include:

• Unit tests
• Stress tests
• Integration tests
• Performance tests

Solution 3

There's no standardised meaning for the term - often it depends on your process- be it Agile or Extreme Programming etc.

Generally however, there are a number of tests done by developers or testing in a developer test environment. This can be unit tests, developer tests, sanity regression tests, performance tests - ie tests that the QA team wants done before they'll even look at it. At a bare minimum, it might be just testing that the software builds (although it's frightening how often I've had a developer fail to even check this).