Abstract: A presentation server which enables a client device to run a network based application by sending structured data from one or more data sources to software on the client device. The presentation server decouples the client device from the data source by (i) insulating the data source from needing to handle directly any display, data storage, data querying or communications functions relating to the client device and (ii) insulating the client device from needing to handle communications functions which are specific to the data source.

Abstract: A presentation server which enables a client device to run a network based application by sending structured data from one or more data sources to software on the client device. The presentation server decouples the client device from the data source by (i) insulating the data source from needing to handle directly any display, data storage, data querying or communications functions relating to the client device and (ii) insulating the client device from needing to handle communications functions which are specific to the data source.

Abstract: Client software, enabling a client to run a network based application which uses structured data, in which the client software comprises: (a) a communication layer to send and receive messages over the network; (b) a database layer to store, and allow querying of, the structured data; (c) a rendering layer which generates, from the structured data in the database layer, data for a user interface; wherein the client software is self-contained to provide all of the communications, data storage and rendering resources needed to run the network based application on the client device. The 3 Layer System is fully integrated and therefore requires no additional client side code to be written. Normally, this level of self-containment on the client side does not exist, so that a developer wishing to deploy a network based application to a client device needs to write client side custom code for the user interface.