Prescription or description: some observations on the conceptual modelling process

Abstract

The ER (Entity-Relationship) Model is widely used to describe the data requirements of organisations and is a commonly taught data modelling tool. Alternative modelling techniques and methodologies are often only offered at more advanced levels. This paper argues that one of these alternatives, NIAM (Natural Language Information Analysis Method) offers, via its prescriptive method and natural language approach, techniques that enhance the initial stages of the conceptual modelling process. Consequently the teaching of the NIAM methodology, to potential information systems (IS) professionals, as part of a more general data modelling component will provide them with a richer skill set, improving their data modelling capabilities, the quality of the models they produce and their ability to communicate effectively with their users.