| 17 | * [http://www.w3.org/TR/owl2-primer/ The OWL 2 primer] to learn about OWL, |
| 18 | * [http://www.w3.org/TR/sw-oosd-primer/ A Semantic Web Primer for Object-Oriented Software Developers] if you know anything about OO modeling in software, as it will help avoid a lot of common pitfalls, and |
| 19 | * [http://workingontologist.org/ Semantic Web for the Working Ontologist] if you want in-depth explanation with lots of examples. |
| 20 | |
| 21 | Then use [http://protege.stanford.edu/ Protege] to actually build the ontology. |