supporting or secondary actor(это система, относительно которой разрабатываемая система (system under discussion, SuD) имеет цель. См. Writing Effective Use Cases by Alistair Cockburn (2001) ssn)
secondary actors(См. Software Modeling and Design by Hassan Gomaa, а тж. Designing Concurrent, Distributed, and Real-time Applications with UML (Object Technology Series) by Hassan Gomaa ssn)
primary and secondary actors(См. Software Modeling and Design by Hassan Gomaa, а тж. Designing Concurrent, Distributed, and Real-time Applications with UML (Object Technology Series) by Hassan Gomaa ssn)