Chapter 8 gave an overview of the iteration process, tasks, and artifacts for the team as a whole. This chapter contains a detailed look at the work of an agile tester within an iteration. It shows how the tester uses input from other team members, and produces output to be used by them. This chapter can be considered a guideline for agile testers. It should help other team members understand the tester and QA efforts on their team, and possibly allow novice testers working in an agile team to perform the testing and QA functions better.