How to find Actor in Use Case Diagram

Asking the following questions will help you identify actors:

  • who or what uses this system?
  • what roles do they play in the interaction?
  • who instanlls the system?
  • who or what starts and shuts down the system?
  • who maintains the system?
  • what other system interact with this system?
  • who or what gets and provides information to the system?

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