A method for delivering applications over a network where the application's logic runs on the backend server and the application's user interface is rendered on a client-device, according to its display capabilities, thought a network connection with the backend server. The application's GUI API and event processing API are implemented to be network-aware, transmitting application's presentation layer information, event processing registries, and other related information a between client and server. The transmission is a high, object level format, which minimizes network traffic. Client-side events are transmitted to the server for processing via a predetermined protocol, the server treating such events and inputs as if locally generated. The appropriate response to the input is generated and transmitted to the client device using the format to refresh the GUI on the client.