4.2. ProcessRuntimeService
It is designed to work with process instances. The service methods allow you to:
-  cancel a process 
-  complete a task 
-  assign a task to the user 
When a process is started, the following process variables are created automatically:
-  bpmProcInstanceId-ProcInstanceobject ID
-  entityName- linked entity name
-  entityId- linked entity ID
To access the service functionality on middleware, use the ProcessRuntimeManager bean.