As more and more large, complex OWL ontologies become available on the Web, the need for mechanisms and methodologies for managing them becomes more urgent. Description logics, such as those underlying OWL, traditionally have not had many features for “development in the large” much less for topic analysis and extraction services so valuable for large scale development or for cross-organizational, uncoordinated reuse. Fortunately, there have been a number of impressive advances in our understanding of how to analyze the modular structure of ontologies.
This tutorial provides a practical introduction to module oriented development of OWL ontologies. First, we introduce the concept of a module along with various essential properties of modules. Then we explain various modularity sensitive services for OWL, and describe various methodological stratagems for their effective use. Participants will gain hands on experience in using a Protégé 4 plugin for module based ontology development.
For more information, please see the tutorial website