An autonomic group communication

We discuss a group protocol which supports applications with group communication service in change of QoS supported by networks and required by applications. An autonomic group protocol is realized by cooperation of multiple autonomous agents. Each agent autonomously takes a class of each protocol junction. Classes taken by an agent are required to be consistent with but might be different from the others. A group is composed of views. Each view is a subset of the agents where the agents autonomously take protocol classes consistent with each other. We make clear what combination of classes can be autonomously taken by agents in a view. We also present how to autonomously change retransmission ways.