OWL Modelling

1.Building class hierarchy

Owl: Thing: superclass of all OWL classes

Electronic devices

Computer

2. Class Hierarchy

3.Disjoints classes

Hard DiskMouse

3.Disjoints classes

Hard Disk Mouse

3.Disjoints classes

4. Relations in OWL

4. Relations in OWL

Mother BoardComputer

hasBoard

BuildOn

4. Relations in OWL

HardDiskComputer

hasPart

hasPart

Component

hasPart

5. Using Conditions

6. Individuals

7. OWL Expresions

<owl:Class rdf:ID="Analogical"> <rdfs:subClassOf rdf:resource="#Mouse"/> <owl:disjointWith rdf:resource="#Optical"/></owl:Class>

Analogical Mouse

7. OWL Expresions

Basic Computer

<owl:Class rdf:ID="BasicComputer"> <owl:equivalentClass> <owl:Class> <owl:intersectionOf rdf:parseType="Collection"> <owl:Class rdf:about="#Computer"/> <owl:Restriction> <owl:onProperty rdf:resource="#hasComponent"/> <owl:someValuesFrom rdf:resource="#Memory"/> </owl:Restriction> </owl:intersectionOf> </owl:Class> </owl:equivalentClass> </owl:Class>

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

8. OWL vs. UML

UML

multiplicity

Derived

Package

Dependency

OWL

minCardinality, maxCardinality and inverseOf

no equivalent

Ontology

reserved name, RDF:properties

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