Glossary · Requirements

Acceptance Criteria

Acceptance criteria are the specific, testable conditions that define when a user story is done and working as intended, including edge cases and exact user-facing messages. They remove ambiguity between product, design, and engineering, and become the basis for QA. If a criterion can't be verified, it isn't a criterion yet.

Related terms

User Story

A small, user-centered description of a need: as a role, I want an action, so that an outcome.

Definition of Done (DoD)

A shared checklist of everything that must be true before work is considered complete.

Product Requirements Document (PRD)

The document that defines what a product should do and why, for the team building it.

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