Technique: CRC cards (Candidates, Responsibilities, Collaborators)
Roles, Responsibilities, Collaborators An object is an implementation of one or more roles; a role is a set of relatedresponsibilities; and a responsibility is an obligation to perform a task or know information. A collaboration is an interaction of objects or roles (or both). (origin: Wirfs-Brock and McKean in [Wirfs-Brock03]) (src: Book_ Growing Object Oriented Software, Guided By Tests - Steve Freeman & Nat Pryce)