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

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Figure 12. The top windows show the semantic models of framework 1 (left) and
framework 2 (right). The bottom window shows three Conzilla comparators.
Highlighting the Agent/Party comparator shows the corresponding parts of the
two models.
the alignment methodology of the semantic models, since it makes use of the bottom-up
conceptual calibration technique described previously.
Figure 12 shows the Conzilla approach to the alignment of the two semantic models
in a highly simplified artificial example. The left and right top windows of Figure
12 show UML diagrams of the two semantic models, and the bottom window
shows three Conzilla comparators, called Agent/Party, Message/Document, and
BusinessProcess/Conversation. Each comparator connects the corresponding concepts
of the two models in such a way that, when the comparator is highlighted, so
are the corresponding concepts. In Figure 12, the comparator Agent/Party has been
highlighted, showing that Agent, ServiceEntity, and BusinessEntity in framework
1 correspond to Party, User, and Role in framework 2.
Moreover, each comparator is linked to a semantic comparison window, where
the similarities and differences of the corresponding parts of the two models are
described. For example, double-clicking the Agent/Party comparator (Figure 13)
opens the corresponding semantic comparison window (bottom left), where the
similarities and the differences between the Agent/Party sections of the two models
are described. The dotted lines show that Agent corresponds to Party, while Ser-
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