Abstract: The present invention describes a method and system for ensuring data consistency amongst a plurality of disparate computing systems that communicate in order to provide an electronic transactional service. Information or data that is common between various databases associated with each of the disparate systems can be identified and monitored during communication. Once the common data gets modified, the modified data can be converted to a format compatible with all the other databases. All the other databases can then be updated to ensure that the modified data is consistent amongst the databases of the various disparate systems. In one aspect of the invention, adapters interfacing with each disparate computing system can identifications to common data. The adapter can communicate the modification to a central data control point (DCP), which can then update all other databases with the modification.

Abstract: In a wireless network system having a wired backbone network with two or more sub-networks, each having one or more access points for communicating with wireless units via a wireless transmission medium, a system, apparatus and method for a wireless unit to determine whether a candidate access point is on a different sub-network than its current access point. If the wireless unit determines that the candidate access point is on a different sub-network, then the wireless unit releases its current network protocol address which was valid for the current sub-network, and obtains a new network protocol address valid for the new sub-network. This is accomplished by the candidate access point transmitting a multicast packet that includes the network protocol address of the access point and the subnet mask of the sub-network which the access point is on. By receiving this multicast packet, the wireless unit can determine if the candidate access point is on a different sub-network than its current sub-network.

Abstract: The present invention describes a method and system for ensuring data consistency amongst a plurality of disparate computing systems that communicate in order to provide an electronic transactional service. Information or data that is common between various databases associated with each of the disparate systems can be identified and monitored during communication. Once the common data gets modified, the modified data can be converted to a format compatible with all the other databases. All the other databases can then be updated to ensure that the modified data is consistent amongst the databases of the various disparate systems. In one aspect of the invention, adapters interfacing with each disparate computing system can identifications to common data. The adapter can communicate the modification to a central data control point (DCP), which can then update all other databases with the modification.