Semantic Web & Ontology Building
This tutorial walks through the fundamentals of the Semantic Web and how to build ontologies using Protégé, a free open-source ontology editor. It covers core concepts — classes, properties, individuals, and restrictions — and shows how to model a small knowledge domain step by step.
What you'll learn
- Key Semantic Web concepts: RDF, OWL, and linked data.
- Installing and setting up Protégé on your machine.
- Creating a class hierarchy and defining object and data properties.
- Adding individuals and applying logical restrictions.
- Running a reasoner to check ontology consistency.
Why ontologies matter
Ontologies let machines understand and reason about data across different systems. By formalising relationships in a domain, you enable richer search, data integration, and automated inference — foundations of the Semantic Web vision.
The tutorial is hands-on: you start with a blank ontology, define a small set of classes (e.g., Person, Organisation, Event), link them with properties, and test the model with Protégé's built-in reasoners like HermiT or Pellet.
For the full step-by-step guide, see the original post on the Tutorials section of the blog.