Describe the following system using three communicating FSMs: A distributed system consists of three communicating processes. The user process (UP) requests a data item from the server process (SP)....

Describe the following system using three communicating FSMs: A distributed system consists of three communicating processes. The user process (UP) requests a data item from the server process (SP). The SP directs any request to the database process (DP) that returns with a data item or returns item not available. Once the SP receives the data item, it increments a counter of service request by 1 and passes the data item to the UP. However, if the SP receives item not available, it tries again after 2 seconds. If it receives item not available again, it returns to the UP with the message item not available. Draw an activity diagram with three swimlanes corresponding to the above description.