US Patent 7680941 Enabling online and offline operation

The present invention provides software developers with the capability to create applications that can access information online and offline without having to program such capabilities into their applications. An application can gather information from various remote data sources via a network or other communication means, and still have access to all or a portion of that information when the computing device running the application is no longer connected to the network. In one embodiment, a client manages information access, caching and synchronization for the application. When connected, information accessed is stored in a local data store on (or near) the computing device. When disconnected, requests are run against the local data store instead of the remote data source. When reconnected, information is synchronized between the local data store and the remote data source.