The acceptance tests for a story are used to determine whether the story is completed to the point where the customer can accept that part of the software as complete. This means that the customer is responsible for specifying the tests. Often, though, the customer will have some help from a tester who is assigned to the project. Since this project is small and without a dedicated tester, Lori enlists the help of Maria and Rafe. An additional benefit of this is that, beyond generating a list of acceptance tests, it leads to further conversations between Lori and the programmers.