Assignment 5: Building Shared Message Board . In this assignment, you are to build a simple shared message board. . Your board must support persistent and asynchronous communication. The sender must be allowed to send a message and go away or even terminate w/o loosing the message. The receiver can receive the message at any time after the message has been successfully placed on board. Both the senders and receivers are identified by symbolic names. A message can be read by more than one receivers but can only be removed by the owner. CSIES2400/CSIEMO140 Distributed Systems . Indirect Communication 103 Assignment 5: Building Shared Message Board Your middleware class(es) must provide at least the following services: Name registration (register user names) Message sending/receiving Message deletion Message checking (to prepare for receiving) . Note that in order to provide persistency, your message server may need to save the messages in secondary storage. Due date: 3 weeks CSIES2400/CSIEMO140 Distributed Systems Indirect Communication 104