Open access
Datum
1997Typ
- Report
ETH Bibliographie
yes
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Abstract
We present a temporal object model capable of representing the lifespan of objects and also the history of the roles and associations in which they participate We advocate an approach of temporal generalisation rather than temporal extension in which a model in its entirety is given a temporal semantics through an orthogonal generalisation of all concepts of the model Our model allows objects to participate in several roles simultaneously Further metadata may also have temporal properties allowing the lifespan of the object roles themselves and constraints over these roles to be modelled The model is based on the generic object data model OM and the associated algebra has been generalised into a full temporal algebra over object roles Mehr anzeigen
Persistenter Link
https://doi.org/10.3929/ethz-a-006652011Publikationsstatus
publishedZeitschrift / Serie
Technical reportBand
Verlag
ETH Zurich, Institute for Information SystemsThema
DATA MODELS (INFORMATION SYSTEMS); OBJECT-ORIENTED PROGRAMMING (PROGRAMMING METHODS); OBJEKTORIENTIERTE PROGRAMMIERUNG (PROGRAMMIERMETHODEN); DATENMODELLE (INFORMATIONSSYSTEME)Organisationseinheit
02150 - Dep. Informatik / Dep. of Computer Science
Anmerkungen
Technical Reports D-INFK.ETH Bibliographie
yes
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