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This paper introduces ADVcharts, a new visual formalism for specifying the behavior of interactive systems in terms of state machines. ADV charts combine the concepts and notations of Abstract Data Views, Objectcharts, Statecharts, Petri-nets, and Calculus of Concurrent Systems. ADVcharts were created to provide a formal semantics for Abstract Data Views---a new design concept for user interfaces---, while also serving as a foundation for a future design methodology for interactive systems. The semantics of ADVcharts are presented through an example.The paper concludes by demonstrating that VDM-like specifications can be derived directly from ADVcharts, thus providing the Abstract Data Views concept with both visual and textual modes of formal description.

ADVcharts: a graphical specification for abstract data views