Journal ArticleDOI
On visual formalisms
TLDR
The higraph, a general kind of diagramming object, forms a visual formalism of topological nature that is suited for a wide array of applications to databases, knowledge representation, and the behavioral specification of complex concurrent systems using the higraph-based language of statecharts.Abstract:
The higraph, a general kind of diagramming object, forms a visual formalism of topological nature. Higraphs are suited for a wide array of applications to databases, knowledge representation, and, most notably, the behavioral specification of complex concurrent systems using the higraph-based language of statecharts.read more
Citations
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Proceedings ArticleDOI
A real world object modeling method for creating simulation environment of real-time systems
Ji Y. Lee,Hye J. Kim,Kyo C. Kang +2 more
TL;DR: A methodology that refines, verifies, and validates behavior, function, and form specification of both the real-time embedded control software and its environment in a systematic and incremental manner is developed.
Journal ArticleDOI
Editorial: Efficacy of Diagrammatic Reasoning
Book ChapterDOI
Graph Drawing Methods
TL;DR: This paper surveys recently developed methods for automatic graph drawing and finds that a good drawing can be worth a thousand words, a poor drawing can confuse and obscure the model.
Proceedings ArticleDOI
Principled design of visual languages for interaction
TL;DR: This paper reports on the Pictorial Computing Laboratory methodology for interactive visual systems (IVS) design, clarifying and deepening, in a systematic way the links between the theoretical aspects of the PCL research, and the results of experimental IVS design.
References
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Book
Introduction to Automata Theory, Languages, and Computation
TL;DR: This book is a rigorous exposition of formal languages and models of computation, with an introduction to computational complexity, appropriate for upper-level computer science undergraduates who are comfortable with mathematical arguments.
Journal ArticleDOI
Communicating sequential processes
TL;DR: It is suggested that input and output are basic primitives of programming and that parallel composition of communicating sequential processes is a fundamental program structuring method.
Journal ArticleDOI
Statecharts: A visual formalism for complex systems
TL;DR: It is intended to demonstrate here that statecharts counter many of the objections raised against conventional state diagrams, and thus appear to render specification by diagrams an attractive and plausible approach.
Book
The entity-relationship model: toward a unified view of data
TL;DR: A data model, called the entity-relationship model, is proposed that incorporates some of the important semantic information about the real world and can be used as a basis for unification of different views of data: the network model, the relational model, and the entity set model.