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Thesis full text (PDF) - Politecnico di Milano

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Figure 3.5: Hierarchy Component<br />

fragment satisfying all the defined con<strong>di</strong>tions. Analogous is the definition of the UML classes<br />

representing selection con<strong>di</strong>tions for the extraction of the property taxonomies.<br />

3.1.5 Instance Component<br />

The Instance component explores the axioms in the knowledge base regar<strong>di</strong>ng both UML data<br />

values and object instances. The selection con<strong>di</strong>tions to be applied are: InstanceOfName extracts<br />

instances and values by name, InstancesOfClass and InstancesOfDirectClass extract the<br />

instances/values by their defining classes/datatypes, InstanceWithPropertyValue extracts the<br />

instances by the values they assume possibly on some properties, and InstanceOfPropertyValue<br />

extracts the object of the in<strong>di</strong>cated property values.<br />

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