Semantic Web-Based Information Systems: State-of-the-Art ...

Bu ld ng Ontology Translat on Systems
Table 3. Semantic transformation of WebODE partitions to OWL DL
WebODE. OWL.DL.
Partition (C, {C1,C2,…,Cn}) C ≡ C1 ∪ C2 ∪ … ∪ Cn
Ci ⊆ C ∀ Ci ∈ {C1,C2,…,Cn}
Ci ∩ Cj ⊆ ⊥ ∀ Ci≠Cj,, Ci,Cj ∈ {C1,C2,…,Cn}
Figure 10. Pragmatic transformations with regard to the scope of WebODE ad hoc
relations
Implementation.of.the.Translation.System
The objective of the implementation activity is to create the declarative specifications
of the transformations to be performed by the ontology translation system,
which will be used to generate its final code. The method proposes to implement
these translations using three different formal languages — ODELex, ODESyntax,
and ODESem — which correspond to the lexical, syntax, and semantic/pragmatic
ontology translation layers, respectively. The same language (ODESem) is used
for implementing semantic and pragmatic transformations, because the translation
decisions at both layers are similar. The description of these languages is out of
the scope of this chapter and can be found in Corcho and Gómez-Pérez (2004) and
Corcho (2005). We can say that the ODELex and ODESyntax languages are simi-
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