Discusses data modeling techniques for the design of information systems and presents the idea of defining a kernel for object role modeling (ORM) techniques upon which different drawing styles can be based. Highlights include syntactical and semantic aspects of the ORM kernel; entity relationships; and the NIAM modeling technique. (50 references)…

Identifies weaknesses of conceptual modelling languages for the problem domain of information systems (IS) development. Outlines an approach called facet modelling of real-world problem domains to deal with the complexity of contemporary analysis problems. Shows how facet models can be defined and visualized; discusses facet modelling in relation…

Proposes a unifying framework based on speech act theory, which reconciliates the representation and communication roles of information systems. Focuses on how communication can be modeled by means of discourses, which are viewed as sequences of events; discusses implications for future research. (Author/AEF)