:r Chat (Chat) :m Connection (Connection) :g [1,1] : "Peer 2 Peer" ("Peer 2 Peer") : Server (Server) :m Messages (Messages) :g [1,3] : Text (Text) : Video (Video) : Audio (Audio) :o "Data Storage" ("Data Storage") :o "Media Player" ("Media Player") C1: ~Server or "Data Storage" C2: ~Video or "Media Player" C3: ~Audio or "Media Player"