INVEST Criteria

The INVEST criteria directly addresses the quality and clarity of user stories, which impacts the speed, quality, and overall effectiveness of software delivery. It helps reduce technical friction and potential customer UX issues arising from poorly defined requirements.

The INVEST Criteria is a mnemonic that stands for Independent, Negotiable, Valuable, Estimable, Small, and Testable. It is used primarily in Agile and Scrum methodologies to create clear and effective user stories. This framework helps teams deliver better products by ensuring that each user story is well-defined and structured to facilitate efficient planning, execution, and testing. The criteria promote transparency, predictability, and adaptability in the development process.

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Steps / Detailed Description

Independent: Ensure each user story is self-contained, with no inherent dependency on another user story.
Negotiable: User stories should be flexible and open to negotiation and discussion.
Valuable: Each user story must deliver a clear value to the customer or user.
Estimable: The team must be able to estimate the size and complexity of the user story.
Small: User stories should be small enough to be easily manageable and testable but large enough to provide significant value.
Testable: There should be clear acceptance criteria to test and verify that the story meets the requirements.