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Abstraction in reasoning about higraph-based systems


Reference:

Power, J. and Tourlas, K., 2003. Abstraction in reasoning about higraph-based systems. Berlin: Springer, pp. 392-408. (Lecture Notes in Comput. Sci.)

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Abstract

Higraphs, a kind of hierarchical graph, underlie a number of sophisticated diagrammatic formalisms, including Statecharts. Naturally arising from hierarchy in higraphs is an abstraction operation known as zooming out, which is of profound importance to reasoning about higraph-based systems. We motivate how, in general, the use of zooming in reasoning requires sophisticated extensions to the basic notion of higraph and a careful definition of higraph dynamics (i.e. semantics), which we contribute. Our main results characterise zooming by means of a universal property and establish a precise relationship between the dynamics of a higraph and that of its zoom-out.

Details

Item Type Conference or Workshop Items (UNSPECIFIED)
CreatorsPower, J.and Tourlas, K.
DOI10.1007/3-540-36576-1
DepartmentsFaculty of Science > Computer Science
StatusPublished
ID Code5519

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