The ontology describes each data entities
critical properties through an attribute value mechanism. The ontology description
languages do not have a standard modelling tool to show a graphical representation of
an ontology fragment. As discussed by Colomb (2005) Unified Modelling Language
(UML) can be used to provide a visual representation of a portion of an ontology
demonstrated in the model of the proposed timber ontology shown in Figure 1.
0 Blake and Pease
Copyright ?© 2007, Idea Group Inc. Copying or distributing in print or electronic forms without written permission
of Idea Group Inc. is prohibited.
Figure 1 shows a model of the proposed ontology for the Australian timber industry,
showing the classes that will be used for reasoning. This model can be extended
and made to fit more enterprises as the ontology is adopted, lowering the level of
ontological commitment for the enterprise.
Formal upper ontologies which define general nondomain-specific entities that exist
in reality, such as creator and date, are both defined in the Dublin Core Metadata
Initiative (DCMI, 2005).
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