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Cooperative Information Systems, IFCIS International Conference on (1998)
New York, New York
Aug. 20, 1998 to Aug. 22, 1998
ISBN: 0-8186-8380-5
pp: 260
Manos Theodorakis , Institute of Computer Science, FORTH, and University of Crete
Panos Constantopoulos , Institute of Computer Science, FORTH, and University of Crete
Anastasia Analyti , Institute of Computer Science, FORTH
Nikos Spyratos , Universite Paris-Sud
Although semantic data models provide expressive conceptual modeling mechanisms, they do not support context, i.e. providing controlled partial information on conceptual entities by viewing them from different viewpoints or in different situations. In this paper, we present a model for representing contexts in information bases along with a set of operations for manipulating contexts.These operations support creating, updating, combining, and comparing contexts. Our model contributes to the efficient handling of information, especially in distributed, cooperative environments, as it enable: (i) representing (possibly overlapping) partitions of an information base; (ii) partial representations of objects, (iii) flexible naming (e.g. relative names, synonyms and homonyms), (iv) focusing attention, and (v) combining and comparing different partial representations. This work advances towards the development of a formal framework intended to clarify several theoretical and practical issues related to the notion of context. The use of context in a cooperative environment is illustrated through a detailed example.
Contexts, data modelling, information bases, cooperative work.

P. Constantopoulos, M. Theodorakis, N. Spyratos and A. Analyti, "Context in Information Bases," Cooperative Information Systems, IFCIS International Conference on(COOPIS), New York, New York, 1998, pp. 260.
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