Mapping is performed with semantic mapping patterns (proposed in Section 4.1), which are used according to
mapping guidelines (proposed in Section 4.2). The restrictive use of the formally specified semantic web standards
in
the proposed patterns is preferred over the use of other concepts (in particular rules, which have high semantic
expressiveness) because of the following two reasons. First, the semantic web standards provide concepts, which are
widely accepted and can be processed using well-established tools, such as editors and reasoners. Second, complexity
measures have been investigated and specified for the standards including a number of typical reasoning problems
(such as ontology consistency, instance checking and query answering)
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, which allows for building applications with
more predictable computational time.