You can define custom sterotype for actor. Use <<system>> sterotype.
If the association between Actor and System is unidirectional, doubleclick on association and select the Navicable to get the open arrow head. For bidirectional association the arroheads are omitted.
Kobie Williams 18 September 2011 17:25:29
Software Developer
Dusan Rodina - softwareideas.net 19 September 2011 0:33:18
RE: Software Developer
Dmitry 24 December 2010 11:30:10
Reusing actors in different use case diagrams
Dusan Rodina - softwareideas.net 3 January 2011 1:45:12
RE: Reusing actors in different use case diagrams
Lasse 8 November 2010 14:33:51
Subsystem or system as actor