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On Visual Formalisms (1988)  (Make Corrections)  (140 citations)
David Harel
Diagrammatic Reasoning



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The importance of toplogy in diagrams is discussed, and higraphs are defined.

Abstract: this article is to extend and combine Euler's two topo-visual formalisms into a tool suitable for dealing with such cases. In the next section, we introduce higraphs, 4 first mod- ifying Euler/Venn diagrams somewhat. then extending tlem to represent the Cartesian product. and finally connecting the resulting curves by edges or hyperedges. [The appendix contains the formal syntax and seman- tics of simple higraphs.} We will then illustrate the power of the formalism by briefly discussing... (Update)

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0.5:   Statecharts: A Visual Formalism For Complex Systems - Harel (1987)   (Correct)
0.2:   Natural Language Processing Using a Propositional Semantic.. - Ali, Shapiro (1993)   (Correct)
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0.5:   Higraph-based Predicate and Heterogeneous Specification - Paige (1995)   (Correct)
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20:   ObjectOriented Modeling and Design (context) - Rumbaugh, Blaha et al. - 1991
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BibTeX entry:   (Update)

Harel, D., "On Visual Formalisms," Communications of the ACM 31(5), pp. 514-530 (May 1988). http://citeseer.ist.psu.edu/harel88visual.html   More

@incollection{ harel95visual,
    author = "David Harel",
    title = "On Visual Formalisms",
    booktitle = "Diagrammatic Reasoning",
    publisher = "The {MIT} Press",
    address = "Cambridge, Massachusetts",
    editor = "Janice Glasgow and N. Hari Narayanan and B. Chandrasekaran",
    pages = "235--271",
    year = "1995",
    url = "citeseer.ist.psu.edu/harel88visual.html" }
Citations (may not include all citations):
2732   Communicating sequential processes (context) - Hoare
1911   Introduction to Automata Theory (context) - Ullman - 1979
1174   Statecharts: A visual formalism for complex systems - Harel - 1987
637   The entity-relationship model--toward a unified view of data (context) - Chen - 1976
297   STATEMATE: A working environment for the development of comp.. - Harel, Lachover et al. - 1988
154   Introduction to Artificial Intelligence (context) - McDermott - 1985
118   the formal semantics of statecharts (context) - Pnueli, Schmidt et al. - 1987
74   Allyn and Bacon (context) - Dugundji - 1966
66   The ESTEREL synchronous programming language and its mathema.. (context) - Cosserat - 1985
65   the epistemological status of semantic networks (context) - On - 1979
32   Degrees of acyclicity for hypergraphs and relational data- b.. (context) - Fagin - 1982
19   Associative Networks: Representation and Use of Knowledge by.. (context) - Ed - 1979
11   When do diagrams make good com- puter languages (context) - Fitter, Green - 1979
7   Graph Theory (context) - Lloyd, Wilson - 1976
6   Logic Machines and Diagrams (context) - Gardner - 1982
2   or how to do things with lines (context) - Green
1   une Princesse d'Allemagne (context) - Leftres
1   Hypertext: An introduction and survey (context) - Conkiln - 1987
1   Nonanalytic aspects on mathematics and their implication on .. (context) - Anderson - 1979
1   May 1988 Volume 31 Number 5 CommuniCations of the ACM (context) - languages, STATEMATE et al. - 1988
1   An entity-relationship approach to modelling petroleum engin.. (context) - al-Fedaghi - 1983
1   Statecharts with overlapping states (context) - Kahana - 1986
1   Solutio problemaris ad geometriam situs pertinentis (context) - Euler
1   A data type ap- proach to the entity (context) - Santos, Neuhold et al. - 1980



The graph only includes citing articles where the year of publication is known.


Documents on the same site (http://www.wisdom.weizmann.ac.il/~dharel/SCANNED.PAPERS/):   More
Propositional Dynamic Logic of Nonregular Programs - Harel, Pnueli, Stavi (1983)   (Correct)
Statecharts: A Visual Formalism For Complex Systems - Harel (1987)   (Correct)
Beauty is in the Genes of the Beholder - Harel, Unger, Sussman (1984)   (Correct)

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