'''Acceptance Testtest-Drivendriven Developmentdevelopment (ATDD)''' is a development methodology based on communication between the business customers, the developers, and the testers.<ref name="Pugh11">{{cite book | first = Ken | last = Pugh | year = 2011 | title = Lean-Agile Acceptance Test-Driven Development: Better Software Through Collaboration | publisher = Addison-Wesley | isbn = 978-0321714084}}</ref> ATDD encompasses many of the same practices as [[Specification by example|Specification by Example]],<ref>Adzic, Gojko. (2009) ''Bridging the Communication Gap: Specification by Example and Agile Acceptance Testing'', Neuri Limited,</ref><ref>{{cite book|last=Adzic|first=Gojko|authorlink=Gojko Adzic|title=Specification by example: How successful teams deliver the right software|publisher=Manning|year=2011|isbn=978-0-321-27865-4}}</ref> [[Behavior-driven development|Behavior Driven Development]] (BDD),<ref>Chelimsky, David, Dave Astels, Zach Dennis, Aslak Hellesøy, Bryan Helmkamp, and Dan North. ''The RSpec Book: Behaviour Driven Development with RSpec, Cucumber, and Friends.'' The Pragmatic Bookshelf.</ref> Example-Driven Development (EDD),<ref>{{cite web| url = http://www.exampler.com/ | title = Example Driven Design| accessdate = 2013-04-15}}
</ref> and Story Test-Driven Development (SDD).<ref>{{cite web| url = http://industriallogic.com/papers/storytest.pdf | title = Story Test-Driven Development | accessdate = 2013-04-15}}</ref> All these processes aid developers and testers in understanding the customer’s needs prior to implementation and allow customers to be able to converse in their own ___domain language.
