Calling an Organizational Process in an Operation
You can create an operation that calls an organizational process. This functionality enables, for example, replacement of the process called by another process without disturbing description of the main process.
To create an operation that calls an organizational process:
1. Select the Operation button 
and select Organizational Process Call.
and select Organizational Process Call.
2. Click in the diagram within the shape of the participant responsible for its execution.
The Creation of Organizational Process Call dialog box opens.
3. In the Organizational Process field, enter the name of the process.
In our example, "Process Purchase Request" could be replaced by "Process Urgent Purchase Request".
By default, the operation carries the same name as the organization process called.4. Click OK.
The operation appears in the diagram with the name of the organizational process.