MoSCoW

Definition
MoSCoW is a technique used in business analysis and software development to reach a common understanding with stakeholders on the importance they place on the delivery of each requirement. The MoSCoW categories are as follows:


 * M &mdash; MUST: Describes a requirement that must be satisfied in the final solution for the solution to be considered a success.
 * S &mdash; SHOULD: Represents a high-priority item that should be included in the solution if it is possible. This is often a critical requirement but one which can be satisfied in other ways if strictly necessary.
 * C &mdash; COULD: Describes a requirement which is considered desirable but not necessary. This will be included if time and resources permit.
 * W &mdash; WON'T: Represents a requirement that stakeholders have agreed will not be implemented in a given release, but may be considered for the future.

((Wikipedia|MoSCoW Method}}