2. The method of claim 1 , wherein each process model representation also includes an indication of which role performs each activity in the represented activity chunk.
2. The method of claim 1 , wherein each process model representation also includes an indication of which role performs each activity in the represented activity chunk. 3. The method of claim 2 , wherein the indication of which role performs each activity is provided by defining a column for each role and arranging the graphical representation of the flow between the activities so that the activities performed by a particular role are arranged in the particular role's column and activities performed by multiple roles are arranged to span the columns of each of the multiple roles.