A structural model for database systems
Gio C. M. Wiederhold, Ramez A. Elmasri · Defense Technical Information Center (DTIC) · 1979
This report presents a model to be used for database design. Because our motivation extends to providing guidance for the structured implementation of a database, we call out model the Structural Model. We derive the design using criteria of correctness, relevance, and performance from semantic and operational specifications obtained from multiple sources. These sources typically correspond to prospective users or user groups of the database. The integration of such specifications is a central issue in the development of an integrated structural database model. The structural model is used for the design of the logical structures that represent a real-world situation. However, it is not meant to represent all possible real-world semantics, but a subset of the semantics which are important in database modelling.