A role is equated or defined by the behavior (and by extension its responsibilities) that it interacts with in the system -
the activities that it interacts with. A role is in essence the "interface" to the activities with which it interacts.
Business Roles are high-level conceptualizations of the Roles with the system; further analysis is required to fully
understand and define required roles. A role can be assumed (aggregated) by any kind of actor, either human or a system. An
actor may be aggregate multiple roles, and an actor can be associated with multiple physical people (or systems). Roles
also include security concepts and constructs. An employee of the enterprise is typically multiple actors with the system
and therefore has many different roles. Also see the definition of Actorand Role.
