competing requirements: why something is must rather than should. Ambiguity over timing, especially on the Won't have category: whether it is not in this release or not ever. Potential for political focus on building new features over technical improvements (such as refactoring). Other methods Other methods used for product prioritization include: RICE scoring model PriX method prioritization method Story mapping prioritization method Value vs. effort prioritization method Kano model prioritization method Opportunity scoring prioritization method The product tree prioritization method Cost of delay prioritization method Buy a feature prioritization method References External links RFC 2119 (Requirement Levels) This RFC defines requirement levels to be used in formal documentation. It is commonly used in contracts and other legal documentation. Noted here as the wording is similar but not necessarily the meaning. Buffered MoSCoW Rules This essay proposes the use of a modified set of MoSCoW rules that accomplish the objectives of prioritizing deliverables and providing a degree of assurance as a function of the uncertainty of the underlying estimates. MoSCoW Prioritisation Steps and tips for prioritisation following the DSDM MoSCoW rules. Software project management Dynamic systems development method Computer jargon