Journal Article10.1111/J.1365-2575.1995.TB00108.X
On the deep structure of information systems
Yair Wand,Ron Weber +1 more
636
TL;DR: Three models are described of information systems' deep‐structure properties that provide a theoretically based, structured way of evaluating grammars that are used to analyse, design and implement information systems and scripts that have been generated using these Grammars to describe specific information systems.
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Abstract: . The deep structure of an information system comprises those properties that manifest the meaning of the real‐world system the information system is intended to model. In this paper we describe three models we have developed of information systems' deep‐structure properties. The first, the representational model, proposes a set of constructs that enable the ontological expressiveness of grammars used to model information systems (such as the entity‐relationship model) to be evaluated. The second, the state‐tracking model, proposes four requirements that information systems must satisfy if they are to faithfully track the real‐world system they are intended to model. The third, the good‐decomposition model, proposes three necessary conditions that information systems must meet if they are to be well decomposed. The three models provide a theoretically based, structured way of evaluating grammars that are used to analyse, design and implement information systems and scripts that have been generated using these grammars to describe specific information systems.
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TL;DR: A data model, called the entity-relationship model, is proposed that incorporates some of the important semantic information about the real world and can be used as a basis for unification of different views of data: the network model, the relational model, and the entity set model.
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TL;DR: In this article, a data model, called the entity-relationship model, is proposed, which can be used as a basis for unification of different views of data: the network model, the relational model, and the entity set model.
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Understanding Computers and Cognition: A New Founda- tion for Design
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The entity-relationship model: toward a unified view of data
Peter P. Chen
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TL;DR: A data model, called the entity-relationship model, which incorporates the semantic information in the real world is proposed, and a special diagramatic technique is introduced for exhibiting entities and relationships.
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Computer Science as Empirical Enquiry : Symbols and Search.
Allen Newell,Herbert A. Simon +1 more
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TL;DR: The Association for Computing Machinery as mentioned in this paper defined computer science as "the study of the phenomena surrounding computers." Computer science is the "study of the organism of the computer, not just the hardware, but the programmed, living machine".
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