A visual language for temporal specifications based on spider diagrams
Bottoni, P. and FISH, ANDREW (2011) A visual language for temporal specifications based on spider diagrams Electronic Communications of the EASST, 41. pp. 1-14. ISSN 1863-2122Full text not available from this repository.
Official URL: http://journal.ub.tu-berlin.de/eceasst/article/vie...
Spider Diagrams are a well-established visual language to specify sets, their relationships, and constraints on their cardinalities. However, they do not support evolution of specifications, where one wants to state that under certain circumstances a specification becomes invalid and a new one must be used, nor transformation of specifications, where one needs operators to manipulate specifications. In this paper, we attack the first problem by developing a new system of timed Spider Diagrams which allow modellers to indicate the temporal range of validity of a specification. The approach is illustrated with examples of policies for library management.
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