Authors: David Campbell
Tags: 1992, conceptual modeling
In the business environment data modeling diagrams are used as a user communication tool during Data Analysis, as a Database Design tool, as part of Systems Documentatio n and, increasingly, as a base for automatic generation of data definition language statements by CASE software . In this paper it is argued that the first two uses hav e conflicting requirements and that there is a need for a separate, more appropriate, nomenclature and notation for user communication than that which is currently in use. A modified form of Chen’s approach is considered an d rejected in favour of a Resource-Activity diagram. The conversion of this to an Entity diagram, and thenc e to Relational form is briefly discussed . Implications for the design of CASE tools and the adoption of a CASE standard are considered .Read the full paper here: https://dl.acm.org/doi/pdf/10.1145/146548.146550
