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<p>An environment for creating user interfaces for embedded systems, called the graphical specification system (GSS), is presented. GSS combines graphical and minimal low-level textual specification with a prototyping capability for rapid user-interface design and evaluation. It is part of a larger embedded systems project at Lockheed, called Express. The user interface components, display components, user-machine interaction, interface-application interaction, and executive component are discussed. Two scenarios, developed with GSS tool prototypes, demonstrate how some GSS tools function. One is the construction of a display with two pairs of gauges, one Cartesian and one polar. The other is the design of a display for submarine tracking.</p>
graphical specification system; user-interface design; environment; embedded systems; textual specification; prototyping; embedded systems project; Lockheed; Express; display components; user-machine interaction; interface-application interaction; executive component; GSS tool prototypes; gauges; Cartesian; polar; submarine tracking; computer graphics; formal specification; programming environments; user interfaces

S. Sheppard, A. Harbert and W. Lively, "A Graphical Specification System for User-Interface Design," in IEEE Software, vol. 7, no. , pp. 12-20, 1990.
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