MoSCow is a feature classification/categorization method rooted in rapid application development that is commonly utilized in agile projects. The method is intended for short, time-boxed development iterations in which the focus remains on items deemed most critical for delivery within the time-boxed period. MoSCoW is a modified acronym that represents four levels of priority classification.

  • Must have – These are time critical project requirements that must be delivered in order for the project not to be considered an outright failure. These are generally baseline, or critical path features.
  • Should have – These are also critical project level requirements, however they are not as time critical as must have requirements.
  • Could Have – These are considered nice-to-have requirements. They are features that are not necessarily required for the success of the iteration or project, but would increase end-user/customer satisfaction in the completed product.
  • Won’t have – These are the lowest priority requirements. They are not scheduled or planned within the delivery time box.

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