1. OWL Modelling

2. 1.Building class hierarchy Owl: Thing: superclass of all OWL classes Electronic devices Computer

3. 2. Class Hierarchy

4. 3.Disjoints classes Hard Disk Mouse

5. 3.Disjoints classes Hard Disk Mouse

6. 3.Disjoints classes

7. 4. Relations in OWL

8. Mother Board Computer hasBoard BuildOn

9. 4. Relations in OWL HardDisk Computer hasPart Component hasPart

10. 5. Using Conditions

11. 6. Individuals

12. 7. OWL Expresions Analogical Mouse

13. 7. OWL Expresions Basic Computer

14. 8. OWL vs. UML UML Class, property and ownedAttribute Instance Binary association Subclass, Generalization Association class Enumeration OWL Class Individual Property Subclass subproperty Class, property oneOf

15. 8. OWL vs. UML UML multiplicity Derived Package Dependency OWL minCardinality, maxCardinality and inverseOf no equivalent Ontology reserved name, RDF:properties

16. 8. OWL vs. UML OWL features with no UML equivalent Thing, global properties, autonomous individual Class-specific cardinality redefinition allValuesFrom, someValuesFrom SymmetricProperty, TransitiveProperty Classes as instances