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Product Backlog – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
An ordered list of everything that might be needed in the product and is the single source of requirements for any changes to be made to the product.
In simple words
The prioritized, evolving list of everything the product might ever need — owned by the Product Owner.
Exam tip
Backlog items get more detailed as they move up the priority list — this is 'progressive elaboration'.
Related terms
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