Semantic Annotation for Process Models: - Department of Computer ...

6.2. DATA STRUCTURE 97
types of model files share same features such as "file name", "file suffix" and "file type".
Profile annotation, meta-model annotation, model annotation and goal annotation are
four components of the annotation framework. Ontologies (GPO, domain ontology and
goal ontology) are the reference ontologies in the different annotation components. A
PSAM file is derived from GPO and its content comprises the model annotation and
the goal annotation. The schema of PSAM models we defined in section is in fact the
extended GPO model in OWL, which is included in section G.1 of Appendix G.
Next we describe the data structure of each annotation component. In Figure 6.3,
any model is the target of a profile annotation and URIs of reference ontologies are to
be specified in the profile annotation.
Figure 6.4: Structure of entities in the meta-model annotation
Figure 6.5: Metis meta-model structure
For a meta-model annotation (Figure 6.4), the meta-model file is the annotation
target and the reference ontology is GPO. A meta-model file is composed of meta-model
elements. GPO contains a number of the GPO concepts. The meta-model annotation
results are composed of semantic mappings between meta-model elements and the GPO
concepts. In the current version of the prototype, only Metis models are imported. In
Figure 6.5, two specific modeling languages are exemplified in the data structure of the
Metis meta-model elements.