Which is the definition of a requirement?

In PRINCE2, a requirement is defined as a need or expectation for a product. To be managed effectively, this need must be documented and agreed upon. This documentation typically occurs in a product description or a dedicated requirements management product. The approval of this documentation ensures there is a clear, shared understanding of what the project must deliver to meet the stakeholders' needs. This forms the basis for defining the project's scope and quality criteria.

B. An event relevant to the project that requires project management consideration: This is the definition of an issue, specifically a request for change, or an off-specification.
C. A prediction about future performance made by studying historical data and past patterns: This describes forecasting, a technique used in planning and control, not a requirement.
D. An uncertain event that, should it occur, will have an effect on the project: This is the definition of a risk.

- AXELOS. (2023). Managing Successful Projects with PRINCE2 (7th ed.). TSO (The Stationery Office). Appendix C: Glossary, "Requirement," p. 388.

- AXELOS. (2023). Managing Successful Projects with PRINCE2 (7th ed.). TSO (The Stationery Office). Section 8.3.1, "Quality planning," p. 82.