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Take note that both processes would still use the same of of participants. Modifying the name or removal of participant at any of the processes may affect all other processes that uses the particular participant.
Figure 4: Delete and Remove participant
Remove participant will only remove the swimlane from the particular process. The participant would still exists in the design package.
However, Delete will completely erase such participant from the entire design package.
Figure 5: Deleted participant causing problem to existing processes