Architecting and designing > TOGAF > Building deliverables for the TOGAF Architecture Development Method > Definitions > Role
  
Role
An actor assumes a role to perform a task. For example, if a person who has the job title (or post) Product Manager, is performing the task training, then the Role he/she is playing is Trainer, and so on.
The usual or expected behavior of an Actor, or the part somebody or something plays in a particular process or event. An Actor can have a number of roles.