A Demonstration of Its—A Rapid Application Development System for User Interfaces

First, ITS separates the style of an application from the content of an application. This allows many applications to share the same style. (Macintosh <TM> and IBM's CUA are examples of styles.) Conversely, this allows a new application to run in several styles. In ITS, human-computer interface styles are general, rule-based, under parameter control, and designed to handle a variety of applications. Once a style exists (we will demonstrate IBM's CUA style) this cuts the new work in half, since application designers no longer need to design and code the user interface style themselves (often greater than half the code). They, assisted by human factors people, can concentrate on understanding user needs and identifying system functions.