A list of screens, features, functions, interfaces, and business logic that is in-scope for the project as well as explicitly out of scope for the project.

The functional scope of the solution describes the basic features & functions that the project team is expected to deliver for the product(s) in question.  The functional scope is required to produce the cost buildup during the funding stage of a project and to build the product backlog for the elaboration stage of a project.

The functional scope may serve as a substitute for the business requirements in certain circumstances. In such situations, the analyst would be expected to clearly define the functional scope in place of the business requirements and skip the BRD process altogether.