What are actors in use case?

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Tags

1. #writing
2. #services
3. #actor
4. #follows
5. #effective
6. #stakeholder
7. #deliver
8. #specifies
9. #played
10. #further
11. #other
12. #system
13. #alistair
14. #cases
15. #actors
16. #primary
17. #defined
18. #interacts
19. #subject
20. #cockburn
21. #calls