An Entity-Relationship Model Extended to Describe Historical Information
Anne Seltveit
Benkt Wangler
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SISU Report-7 - An Entity-Relationship Model Extended To Describe Historical Information |
| SISU Report | |||
An Entity-Relationship Model Extended to Describe Historical Information |
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| Utgivningsår: | 1994 | ||
| Nummer: | 7 | ||
| Titel: | An Entity-Relationship Model Extended to Describe Historical Information | ||
| Sammanfattning: | The ER model has proved a successful conceptual capture and modelling tool for the relational data model. Much effort has recently been made to extend the relational data model to describe historical information, but as yet little corresponding development in ER modelling has been made. We describe in detail the various temporal behaviours that entities and relations may exhibit, and apply the results to enhance a binary ER model with temporal semantics, which may fully model a certain class of historical relational databases. Keywords: Data Models, ER Models, Temporal Databases, Historical Databases. | ||
| Projekt: | Tempora | ||
| Språk: | Engelska | ||
| Författare: | Peter McBrien Anne Seltveit Benkt Wangler |
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