Abstract
The paper is an abstract of a tutorial presented at the 9th ERA conference. It defines a generic model based on an extension of the N1NF relational model (including, a.o., the entity domain), and whose semantics is formally specified. From this framework, a variety of standard entity-based and object-based models are derived. Thefore, the latter can be formally defined, and compared. In addition, the concept of schema transformation is introduced.
Original language | English |
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Title of host publication | Proc. of the 9th Int. Conf. on the Entity-Relationship Approach |
Publisher | North-Holland |
Pages | 53-64 |
Number of pages | 12 |
Publication status | Published - 1990 |
Keywords
- schema transformation
- formal semantics
- ER model
- database modeling