A DATA ACCESS, REPLICATION OR COMMUNICATION SYSTEM COMPRISING A MESSAGE QUEUING COMMUNICATIONS PLATFORM

摘要

The invention provides a session independent platform for data transfer which enables delivery of messages over a network to be reliable, even if an unreliable protocol such as UDP/IP or ATM is used. In this asynchronous communication method each message is preferably individually acknowledged, authenticated and encrypted. The client terminal is preferably a wireless mobile terminal such as a smart phone and may be used for e-mail. Rather than sending a complete data set between the terminal and the server, it is only necessary to send an "event" listing the changes to the data stored at terminal or server. The invention may enable messages containing an ID of the mobile terminal to be mapped to the dynamically allocated IP address of the terminal. The server and terminal may together act as a client to a second server.