Pugh Ken. Lean-Agile Acceptance Test-Driven Development: Better Software Through Collaboration

Addison-Wesley, 2010. — 368 p.Within the framework of Acceptance Test-Driven-Development (ATDD), customers, developers, and testers collaborate to create acceptance tests that thoroughly describe how software should work from the customer's viewpoint. By tightening the links between customers and agile teams, ATDD can significantly improve both software quality and developer productivity.