All requests affect one or more design parts. The scope of work for a request is determined by the design part that it affects. If the request affects a design part at the lowest level of the design structure, the scope of the request is narrowed to that part of the design structure.
Because roles are assigned to users with respect to the design part structure of a product, the design part governs which users have access to the request.
Ideally, requests are assigned to the correct design part when they are created. However, this does not always happen because the person submitting the request may not know which design part the request affects. Therefore, a few users are normally given roles at the top-level design part that permit them to change the relationship between the request and the design part.
Related Topics
About Design Part Relationships