Proceedings

Figure 4. Transforming process: UML model. Ontology in RDFS
(Source: According to Faucher et al., 2008))
Tabel 1
UML RDF(S),OWL
Class owl :Class
Generalization rdfs :subclassOf
Association owl :ObjectProperty
Attributes owl :DatatypeProperty
InstanceOf rdf :type
Multiplicity owl :minCardinality, owl :maxCardinality
By annotations, all the interesting elements of the model are selected. The annotation
mechanism uses the intrinsic possibilities of UML extension, such as: profiles,
stereotypes, and labeled values. Then, the annotations are exploited while the
ontology is built up, in order to guide the process of model transformation. The
annotated UML model represents an extension of the UML model, which is orientated
on a precise activity field. The pivot model, actually an UML model of ontology,
contains the information required for building up the ontology, in accordance with the
UML meta-model. The second change is based on the connections between the UML
elements and an ontology structure, like RDFS or OWL.
Elements of training ontology
The training ontology describes the specific concepts of the training process, such as:
type of actors involved in the training process, type of pedagogical activities, type of
documents etc. According to Benayache (2005), the training field performs with
specific training concepts:
• Actors of the training process (teacher, student, secretary, administrator,
technician etc.);
• Documents (reading notes, slides, books, Web pages, Web sites and so on);
• Educational resources (digital resources, teaching aids etc.).
All these concepts and relationships constitute the training ontology. The standard
structure of the training ontology, according to Abel et al. (2004), is presented in
Figure 5.
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