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

150 CHAPTER 9. VALIDATION OF APPLICABILITY
RE3. For RE4, we have to run the SWRL rules of RE1, RE2 and RE3 on different
models respectively and analyze all query results manually. For example, implementing
RE4.1 (Find out semantic relationships between the Activities of different process models)
needs the SWRL rules QRule-Activity-sameas, QRule-Activity-kindof and
QRule-Activity-phaseof for RE2.1 (Find the model fragments of process models that
reference to SCOR Management Process). In this application, those rules are run on all
the three models, and SCOR Management Processes in the domain ontology are used
as the common references (which are specified in the variables in the SWRL rule formulations)
to analyze the relationships between the query results of three models. The
relationships usually applied in the analysis are ontological relations such as OWL Class
subsumption, OWL Class equivalent, ObjectProperty part-whole relationship and etc.
To implement RE4.5 (Find out possible integration points among different process
models), we consider the following integration cases by running related SWRL queries
and rules for the above requirements.
• Case 1. Output and input. If the outputs in one model can be mapped to the
inputs in another model, then it is possible to integrate the two models through
the outputs and the inputs. QRule-Activity-Output-mappedto and QRule-
Activity-Input-mappedto are run on three models respectively. The variable
of ontology concept ?z can be replaced by a specific domain concept.
• Case 2. Sequence of activities. If the Activities from the three annotation models
that have references of the SCOR process elements, then a possible integration of
those Activities from different models can be checked according to the sequence
definition in SCOR ontology. SWRL queries for RE2.1 (Find the model fragments
of process models that reference to SCOR Management Process) can be run in this
case, and the variable ?y is specified with a SCOR process element in each query.
• Case 3. Semantic relationship of activities. If two Activities from different models
have certain semantic relationships with each other according to the domain
annotation, then there is a possibility for two Activities to be integrated through
the relationships. The SWRL queries for RE2.1 (Find the model fragments of
process models that reference to SCOR Management Process) can also be used
in this case, and the annotation relationships such as same_as, kind_of and
phase_of should be concerned in the integration analysis.
• Case 4. Ontological relationship of goals. If two Activities from different
models are annotated with the goals and the goals are same or
have certain ontological relationships, the possible integration of two models
can be analyzed based on the goal annotation. Goal concept is specified
to replace the ontology concept variable ?y in the queries QRule-
Activity-achievesHardGoal, QRule-Activity-positivelysatisfiesSoftGoal
and QRule-Activity-negativelysatisfiesSoftGoal. Through the ontological
relationship has_parts or rdfs:subClassOf, the parts or the sub-class of this
goal are also specified to replace ?y respectively in the queries.
The SWRL queries and rules above are edited in Protégé-OWL SWRLTab (see
Figure 9.1). They are attached to all the OWL files of the annotation models and will