A relational model of data for large shared data banks
Communications of the ACM
Understanding Natural Language
Understanding Natural Language
Theoretical description of an access language for a general decision support system.
Theoretical description of an access language for a general decision support system.
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When considering the design and implementation of systems for decision support, a crucial point is the power and flexibility of available tools for representing data contexts. The value of such systems is constrained by the "richness" of patterning allowed by their data structure mechanisms. We introduce the notion of an information base as a natural step forward in the continuing evolution of data structures. The outstanding features of the information base are (1) its accommodation of the horizontal and vertical integration of information parcels into a single semantic mechanism, and (2) the integration of operators into this semantic structure.