UML 2.2 RTF Avatar
  1. OMG Issue

UML22 — Why not using the UML1 activity symbol for UML2 actions?

  • Key: UML22-508
  • Legacy Issue Number: 6503
  • Status: closed  
  • Source: oose Innovative Informatik eG ( Mr. Tim Weilkiens)
  • Summary:

    I didn't recognize it before, but now I am surprised that the action
    symbol
    is not the same as the UML1 activity symbol ("shape with straight top
    and bottom
    and with convex arcs on the two sides").
    Actions are no activities, but the semantic is similar for
    the "normal" UML user.
    In UML1 the user has to distinguish between the activity symbol and
    the state symbol ("round-cornered rectangle"), especially if states
    and activities
    are shown within the same diagram.
    Now you has to use the UML1 state symbol for actions. I think that
    this is confusing
    for the normal UML user.
    Another point is that the action symbol is the same as the state
    symbol. There will
    be no chance for a misunderstanding, because both symbols are not
    allowed within the same
    diagram. But it would be much clearer if the action symbol has a
    different notation and
    looks like the UML1 activity symbol.

    So, why not using the UML1 activity symbol for UML2 actions?

  • Reported: UML 1.5 — Fri, 7 Nov 2003 05:00 GMT
  • Disposition: Resolved — UML 2.1
  • Disposition Summary:

    No Data Available

  • Updated: Fri, 6 Mar 2015 20:58 GMT