planning - designing - developing IT
Special Interest Group on Systems Analysis and Design

Publications

An analysis of multivalued and join dependencies based on the entity-relationship approach

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In this paper, we show that multivalued dependencies and join dependencies are not very viable for certain cases of...

Grand tour of concepts for object-orientation from a database point of view

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Over the last few years, object-orientation has gained more and more importance within several disciplines of computer science (e.g....

DICE: declarative integrity constraint embedding into the object database standard ODMG-93

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In this paper we present a new approach for embedding integrity constraints into object-oriented database systems (OODBS), which can...

A multi-level view model for secure object-oriented databases

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In this paper, we employ the view model given by Bertino to design a secure multi-level object-oriented database system....

A system for the semiautomatic generation of E-R models from natural language specifications

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Techniques that allow a program to generate E-R models for small application domains are described. The inputs to the...

Towards a formal semantics and inference rules for conceptual data models

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A new-from a theoretical point of view-approach to expressing data- or knowledge base semantics is described: the universe of...

Extending ERD modeling notation to fuzzy management of GIS data files

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Geographic information systems manage a wide variety of data. Some of these data are stored in traditional databases, but much...

Efficient data retrieval and manipulation using Boolean entity lattice

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This paper proposes a technique to organize the database such that retrievals and manipulations will be operated on a...

An ontology based approach to the integration of entity–relationship schemas

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In schema integration, schematic discrepancies occur when data in one database correspond to metadata in another. We explicitly declare...

On the design and maintenance of optimized relational representations of entity-relationship schemas

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A method for obtaining optimized relational representations of database conceptual schemas in an extended entity-relationship model is first proposed....