The object-based event calculus is a modified version of the event calculus which is a general approach to the treatmeht of time and change in a logic programming framework. We present here the use of the object-based...
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As active and deductive databases are applied to more complex domains (e.g. engineering design), the need to track the causality of data which has been derived by rules in the database becomes vital. Truth maintenance...
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Not far behind the leaders in the object-oriented revolution, the advocates of object-oriented databases and methodologies have been rushing into print to establish their commercial positions — or academic reputation...
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In this paper, we discuss the design and implementation of a knowledge based object-oriented database (OODB) schema generator called KERO. KERO converts entity-relationship (ER) diagrams into structurally object-orien...
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Migrating data to a new database model presents problems if there are existing application programs that must continue to access the data, bu that cannot be converted immediately. If the target database is object-orie...
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This paper focuses on consistent structural updates for object database design and is included in a formal approach* for advanced database modeling and design. This approach is based on the IFO2 model, an extension of...
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Many organizations with investments in relational database management systems (RDBMS) want to build object-oriented applications supporting a graphical user interface without forcing programmers to deal with SQL and R...
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The paper describes spatial indexes, a 2D array structure which can be used for the representation of spatial information. A spatial index preserves only a set of spatial relations of interest, called the modelling sp...
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Since their introduction several years ago, objectoriented programming methodologies have proved their usefulness for software development. Lking the past five years, objectoriented database management systems have ...
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Many researchers have addressed the problem of reverse-engineering a relational database schema to produce an Entity Relationship graphical representation of its structure. This paper describes the development of a sc...
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