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A theory of contexts in information bases
2002
Information Systems
| 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 di erent viewpoints or in di erent situations. In this paper, we present a m o d e l f o r representing contexts in information bases along with a set of operations for manipulating c o n texts. These operations support context creation, update, copy, union, intersection, and di erence. In
doi:10.1016/s0306-4379(01)00036-9
fatcat:qgufjgppuzfvtn5yws7rbhnx4q