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Foundations of entity-relationship modeling
Annals of Mathematics and Artificial Intelligence, 1993Database design methodologies should facilitate database modeling, effectively support database processing, and transform a conceptual schema of the database to a high-performance database schema in the model of the corresponding DBMS. The Entity-Relationship Model is extended to theHigher-orderEntity-RelationshipModel (HERM) which can be used as a ...
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Constraint acquisition for Entity-Relationship models
Data & Knowledge Engineering, 2009We establish search algorithms from the area of propositional logic as invaluable tools for the semantic knowledge acquisition in the conceptual database design phase. The acquisition of such domain knowledge is crucial for the quality of the target database.
Sven Hartmann, Sebastian Link, Thu Trinh
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Applications of the Entity-Relationship model
1982Database design is a very difficult problem. Recently, the Entity-Relationship Model has been found very useful in helping the database designer to identify the information needs of users, and to design logical data structures in databases. In this paper, an application of the Entity-Relationship Model to the design of an order entry database is ...
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Entity — Relationship modeling and fuzzy databases
1986 IEEE Second International Conference on Data Engineering, 1986This work describes an integration of an entity/relationship model and fuzzy databases. It outlines a formal model for representing fuzziness in the ER model, and sketchs a version of the ER algebra, adapted to manipulating fuzzy databases.
Arie Zvieli, Peter P. Chen
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Temporal entity-relationship models-a survey
IEEE Transactions on Knowledge and Data Engineering, 1999The entity-relationship (ER) model, using varying notations and with some semantic variations, is enjoying a remarkable and increasing popularity in both the research community-the computer science curriculum-and in industry. In step with the increasing diffusion of relational platforms, ER modeling is growing in popularity.
Heidi Gregersen, Christian S. Jensen
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1997
In this chapter as well as in chapters 6 and 7 we cover the area of relational database design. Although database design can be regarded as falling within the scope of Systems Analysis, important design techniques have been influenced by the Relational Model.
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In this chapter as well as in chapters 6 and 7 we cover the area of relational database design. Although database design can be regarded as falling within the scope of Systems Analysis, important design techniques have been influenced by the Relational Model.
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Proceedings of the June 13-16, 1977, national computer conference on - AFIPS '77, 1977
"To appear in the P\0332ro\0332c\0332e\0332e\0332di\0332ngs\0332 \0332o\0332f\0332 \0332A\0332F\0332I\0332P\0332S\0332 \0332 C\0332o\0332nf\0332e\0332re\0332nc\0332e\0332, 1977 National Computer Conference, June 1977, Dallas, Texas. "
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"To appear in the P\0332ro\0332c\0332e\0332e\0332di\0332ngs\0332 \0332o\0332f\0332 \0332A\0332F\0332I\0332P\0332S\0332 \0332 C\0332o\0332nf\0332e\0332re\0332nc\0332e\0332, 1977 National Computer Conference, June 1977, Dallas, Texas. "
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An evaluation of extended entity-relationship model
Information and Software Technology, 1997Abstract The Entity-Relationship (ER) model allows a database designer to develop a high-level conceptual schema without having to consider low-level issues such as efficiency, the underlying database management system model, or physical data structures. The ER model has become very popular for database design and is used quite extensively.
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2000
In the remaining chapters, we discuss the extended entity-relationship model, the higher-order entity-relationship model HERM. However, in order to understand why it is necessary to extend the model, we will briefly discuss the original ER model first published by Chen [Che76]. It has been extended or restricted by several authors.
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In the remaining chapters, we discuss the extended entity-relationship model, the higher-order entity-relationship model HERM. However, in order to understand why it is necessary to extend the model, we will briefly discuss the original ER model first published by Chen [Che76]. It has been extended or restricted by several authors.
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REERM: Reenhancing the entity–relationship model
Data & Knowledge Engineering, 2006The entity-relationship model (ERM) remains one of the most widely used SW Engineering techniques. Much research effort has focused on incorporating into database design in general, and ER modeling in particular the historical support requirements arising from the temporal nature of dynamic domains.
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