Acceptance Test-Driven Development

Acceptance Test-Driven Development (ATDD) is a collaborative approach where team members—developers, testers, and stakeholders—define specific criteria for a feature’s success before starting work. These criteria, called acceptance tests, describe how the feature should behave from the user’s perspective. By agreeing on these tests upfront, the team ensures everyone understands the requirements and builds a product that meets user needs. As development progresses, tests are run to confirm the feature functions correctly and fulfills the agreed-upon criteria, leading to higher quality and fewer misunderstandings.