3.     A Theoretical Discussion of Enterprise Models and Modeling

After the presentation of research questions and approach in chapter 1 and the three initial empirical studies in chapter 2, a more fundamental and theoretically oriented discussion of enterprise models and modeling is required.

Chapter 3 starts with some contemporary definitions of enterprise modeling, followed by an outline of a body of theories that together make up the conceptual and philosophical foundation used for investigation of enterprise modeling in this thesis. The outline includes a discussion of central concepts like sense-making and communication. The concepts model and modeling are then analyzed in more detail, followed by a description of what is meant by enterprise modeling from a theoretical point of view. The chapter is concluded by a presentation of two taxonomies of enterprise modeling according to purpose of modeling and type of work being modeled.

The essence of the chapter is that enterprise modeling is seen as a process of knowledge production and use, and that both the researcher's and the modelers' ontological and epistemological assumptions influence the understanding of enterprise modeling. The process of enterprise modeling inevitably becomes more important with a constructivistic worldview than with an objectivistic worldview.

3.1 Introductory Discussion of Terms
3.1.1 Assorted definitions of enterprise modeling
3.1.2 Closely related terms
3.1.3 Outline of the chapter
3.2 Ontological and Epistemological Foundations
3.2.1 What is meant by ontology and epistemology?
3.2.2 An objectivistic worldview
3.2.3 A constructivistic worldview
3.2.4 Perspective making and perspective taking in communities of knowing
3.2.5 Concluding remarks on worldviews and theory
3.3 Models and Modeling: A Clarification of Concepts
3.3.1 What is meant by a model?
3.3.2 What is meant by modeling?
3.4 Enterprise Modeling Revisited
3.4.1 Enterprise modeling
3.4.2 Enterprise modeling and Universe of Discourse
3.4.3 Enterprise modeling in the empirical studies
3.5 A Taxonomy of Enterprise Modeling Based on Purpose
3.5.1 Three categories of enterprise modeling
3.5.2 Purposes observed in the empirical studies
3.6 A Taxonomy of Work
3.6.1 Four categories of work
3.6.2 Categories of work in the empirical studies
3.7 Concluding Remarks