ER
1994
Springer
14 years 3 months ago
1994
Springer
Abstract. As information systems are increasingly being called upon to play vital roles in organizations, conceptual modelling techniques need to be extended to relate information ...
ER
1994
Springer
14 years 3 months ago
1994
Springer
ER
1994
Springer
14 years 3 months ago
1994
Springer
A normal form object-oriented entity relationship (OOER) diagram is presented to address a set of 00 data modelling issues, viz. the inability to judge the quality of an 00 schema,...
ER
1994
Springer
14 years 3 months ago
1994
Springer
A logical database schema, e.g. a relational one, is an implementation of a speci cation, e.g. an entity-relationship diagram. Upcoming new data models and the necessity of seamle...