Table 1 Summary of MoSCoW prioritization method categories

Must have

Requirements which are essential or critical and must be included for success

Should have

Requirements which are important but not necessary. They add significant value and may be as important as ‘must have’ items but are not as time-critical

Could have

Desirable requirements which can affect user experience or satisfaction and can be included if time and resources allow

Won't have (at this time)

Least-critical, lowest-payback, or not appropriate requirements. They are not a priority and are outside of the scope of delivery at this time