Programming in Prolog (2nd ed.)
Programming in Prolog (2nd ed.)
Database description with SDM: a semantic database model
ACM Transactions on Database Systems (TODS)
ACM Transactions on Database Systems (TODS)
Data Models
Logic and Data Bases
TIMBER: A Sophisticated Relation Browser (Invited Paper)
VLDB '82 Proceedings of the 8th International Conference on Very Large Data Bases
BAROQUE: a browser for relational databases
ACM Transactions on Information Systems (TOIS)
The 3DIS: an extensible object-oriented information management environment
ACM Transactions on Information Systems (TOIS)
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Current database architectures emphasize structure and are inappropriate for applications which model environments that are subject to constant evolution, or environments which do not lend themselves to massive classifications In this paper we describe an architecture which promotes databases that are only loosely structured heaps of facts instead of highly structured data This architecture avoids the traditional dichotomy between "schema" and "data", and it incorporates a single mechanism for defining both inference rules and integrity constraints As lack of organization will usually have adverse effect on retrieval, the principal retrieval method for loosely structured databases is browsing exploratory searching which does not assume any knowledge of the organization (or even the very existence of organization) Two styles of browsing, called navigation and probing, are defined Both are derived from a standard query language based on predicate logic