A Framework for Integrating ESL Tools - IRIT

10 Pierre-Yves Pillain, Joel Champeau, Hanh Nhi Tran
At this step of process instantiation, we have to specify the language used to represent
the activity’s workproduct. In this example, we chose the metamodel CDL (Context
Description Language) [13] to represent the NeedSpecificationModel. The result of
this NeedSpecification activity is thus a model conformed to CDL metamodel. This
choice of this metamodel determines the choice of the ProcessComponent performing
the activity. So we chose the NeedSpecificationEditor process component which
allows to produce a CDL model specifying system’s needs. As explained, the model
created by the NeedSpecification activity must satisfy the intention “gather
requirements and design scenarii''. To enable a validation of intention satisfaction, an
OCL constraint is defined to verify the content and states of the output model. For
example, here we defined the following constraint on NeedSpecificationModel:
self.topActivity->size()>0 //the CDL model contains at least one actor.
The next step is to create an executable
instance of NeedSpecification activity by
realizing the MODAL-Cometa
transformation. The result of this
transformation (Fig. 10) shows that each
BasicComponent contains the state machine
incorporated during the transformation.
Fig. 10. An instance of the NeedSpecification
activity
This activity instance then is executed; invoked the execution of the program captured
in its process component NeedSpecificationEditor (Fig. 11).
Fig. 11. NeedSpecificationEditor process component’s screen
When the process component execution is terminated, the OCL constraint
“self.topActivity->size()>0” is verified and determines the next state of the
NeedSpecification activity.
5 Conclusion
We have presented our work on supporting software process enactment, concretely to
provide an execution environment to MODAL process models. Our approach focuses on
integrated supports for controlling the performance of process’ activities, i.e. to closely
manage used tools and manipulated products in order to satisfy the process’ intention.
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