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

Publications

Explaining ambiguity in a formal query language

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The problem of generating reasonable natural language-like responses to queries formulated in nonnavigational query languages with logical data independence...

A formal approach to the definition and the design of conceptual schemata for databased...

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A formal approach is proposed to the definition and the design of conceptual database diagrams to be used as...

Incomplete information costs and database design

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This paper presents a methodology for trading-off the cost of incomplete information against the data-related costs in the design...

Computational problems related to the design of normal form relational schemas

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Problems related to functional dependencies and the algorithmic design of relational schemas are examined. Specifically, the following results are...

Physical database design for relational databases

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This paper describes the concepts used in the implementation of DBDSGN, an experimental physical design tool for relational databases...

An improved third normal form for relational databases

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In this paper, we show that some Codd third normal form relations may contain “superfluous” attributes because the definitions...

An ontological analysis of the relationship construct in conceptual modeling

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Conceptual models or semantic data models were developed to capture the meaning of an application domain as perceived by...

The role of domain ontologies in database design: An ontology management and conceptual modeling...

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Database design is difficult because it involves a database designer understanding an application and translating the design requirements into...

Towards a semantic view of an extended entity-relationship model

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Nearly all query languages discussed recently for the Entity-Relationship (ER) model do not possess a formal semantics. Languages are...

The entity-relationship model—toward a unified view of data

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A data model, called the entity-relationship model, is proposed. This model incorporates some of the important semantic information about...