Enabling online and offline operation

One or more processor readable storage devices having processor readable code embodied thereon, the processor readable code for programming one or more processors to perform a method comprising:

• responsive to an application, providing a communication from a computing device to a server if the computing device is online, the communication includes an identification of a first data source, the server is configured to communicate with the first data source;
• and
• if the computing device is not online, responding to the application using data in a data store local to the computing device, the data in the data store represents a local version of at least a subset of information stored in the first data source;
• and
• synchronizing the data store with the first data source when the computing device is online, the synchronizing comprises sending, from the computing device to the server, a request for synchronization which includes a change counter.

A method for enabling software to work offline and online, comprising:

• responsive to an application, providing a communication from a computing device to a server if the computing device is online, the communication includes an identification of a first data source, the server is configured to communicate with the first data source;
• if the computing device is online, receiving a first executable file from the server in response to the communication provided thereto, and providing the first executable file to the application;
• and
• if the computing device is not online, providing a second executable file to the application using at least a subset of data in a data store local to the computing device, the data in the data store represents a local version of at least a subset of information stored in the first data source;
• the application rendering the first and/or second executable files.

A method for enabling an application of a computing device to work offline and online, comprising the steps of:

• if a computing device is online, responding to a communication from said application by forwarding said communication to a server for use in running a query involving a first data source with which said server communicates;
• if said computing device is not online, responding to said communication by processing at least a portion of said communication at said computing device using data in a local data store accessible to said computing device, said data in said local data store represents a local version of at least a subset of information stored in said first data source, said processing comprises running a query using the local data store;
• and
• synchronizing the local data store with the first data source when the computing device is online, the synchronizing comprises sending, from the computing device to the server, a request for synchronization which includes a change counter.