Abstract: A system for use-case software development includes an interface renderer for interpreting a user interface definition code and displaying a user interface, a request dispatcher for processing a request from the interface renderer, and a request handler for processing the request and checking a use-case name contained in the request. The system further includes a use-case handling program, invoked by the request handler, for performing logic defined by a use-case corresponding to the use-case name and according to a use-case state and returning an interface definition specifying an interface layout and controls that are interpretable by the interface renderer, and a server page container for receiving the interface definition and providing the user interface definition code to the interface renderer.