CHAPTER 2

How Do We Say it in OWL?

2.1    INTRODUCTION

In Chapter 1, we described the key things that need to be said in order to build a model of some subject matter and to create data based on that model. In this chapter, we describe how to say those things in OWL. In doing so, we transition from mostly non-technical language to the more technical language of OWL.

This chapter presents the approximately 30% subset of OWL that you will use 90% of the time when you create ontologies. We mostly illustrate the concepts in the healthcare industry, taking up where we left off in Chapter 1. We also use examples from other industries and subjects.

2.2    SAYING THINGS

At the beginning of Section 1.8 we identified six kinds of assertions that we need ...

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