Architecting and designing : UML 2.0 Lite : UML models : UML Use Case diagram : Case worker
  
Case worker
A case worker is a stereotype of a class that is specified in UML Extensions for Business Modeling. It can be shown as a regular class rectangle with stereotype of "case worker", or as the following icon:
Definition
A case worker is a Worker who interacts directly with actors outside the system.
Drawing a case worker
To draw a case worker on a Use Case diagram, select the Case Worker icon from the tools menu.
See also Changing from icon view to class view.
See also
UML Use Case diagram