Authors:
Leila Jemni Ben Ayed
;
Ahlem Ben Younes
and
Amin Ben Brahim Achouri
Affiliation:
ESSTT, Tunisia
Keyword(s):
Workflow applications, Specification, AToM3, UML activity diagram, Formal verification, Event B.
Related
Ontology
Subjects/Areas/Topics:
Cross-Feeding between Data and Software Engineering
;
Model-Driven Engineering
;
Software Engineering
;
Software Engineering Methods and Techniques
;
Software Testing and Maintenance
Abstract:
In this paper, we propose an approach for the verification of workflow applications using AToM3 and Event B. Workflow carries applications where many actors take part and cooperate in order to execute operations. Upon composing those operations, many problems such as deadlock, freeness and livelock might appear. In this context, we are going to show how to build a meta-model for UML activity diagram in AToM3. From this meta-model, AToM3 generates a visual tool to build and to specify workflow applications where syntactical verification is made. Further, we are going to define a graph grammar to generate a textual code from the graphically specified workflow. This code will maintain information about all the activities and their dependencies. Another role of the graph grammar is to generate an Event B machine used for the verification of the workflow. Structural errors like deadlock and absence of synchronization can be captured from the resulted Event B model. Functional requirements
are also verified using the resulted Event B model.
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