Abstract
In recent years the relational model has been widely adopted for data base description. According to this model a data base, DB, describes certain objects of the world having certain attributes, and the relationships among them. Thus, DB is characterized by a set of attributes, D , a set of domains associated with the attributes, and a set of dependencies, F , corresponding to the relationships among the attributes (all the terms and concepts not defined here are those of References 1-3 ). A data base is a collection of relations, R ={ R i }. Each relation R i is characterized by a set of attributes S i ={ D j | D j D } called its scheme , and consists of a set of tuples. Each tuple is a map from the attributes of the relation scheme to their domains that satisfies all the dependencies of F (we shall consider functional dependencies).
| Original language | English |
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| Title of host publication | 1979 International Workshop on Managing Requirements Knowledge, MARK 1979 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 717-720 |
| Number of pages | 4 |
| ISBN (Electronic) | 9781509031818 |
| DOIs | |
| State | Published - Jun 1979 |
| Event | 1979 International Workshop on Managing Requirements Knowledge, MARK 1979 - New York, United States Duration: 4 Jun 1979 → 7 Jun 1979 |
Publication series
| Name | 1979 International Workshop on Managing Requirements Knowledge, MARK 1979 |
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Conference
| Conference | 1979 International Workshop on Managing Requirements Knowledge, MARK 1979 |
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| Country/Territory | United States |
| City | New York |
| Period | 4/06/79 → 7/06/79 |
Bibliographical note
Publisher Copyright:© 1979 IEEE.