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Workflows with Passbacks and Incremental Verification of Their Correctness

Osamu TAKAKI, Izumi TAKEUTI, Noriaki IZUMI, Koiti HASIDA

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Summary :

In this paper, we discuss a fundamental theory of incremental verification for workflows. Incremental verification is a method to help multiple designers share and collaborate on huge workflows while maintaining their consistency. To this end, we introduce passbacks in workflows and their consistency property in the control flow perspective. passbacks indicate redoing of works. Workflows with passbacks are useful to naturally represent human works. To define the consistency property above, we define normality of workflows with passbacks and total correctness of normal workflows based on transition system-based semantics of normal workflows. We further extend workflows to sorted workflows and define their vertical division and composition. We also extend total correctness to normal sorted workflows, for the sake of incremental verification of a large-scale workflow with passbacks via vertical division and composition.

Publication
IEICE TRANSACTIONS on Information Vol.E95-D No.4 pp.989-1002
Publication Date
2012/04/01
Publicized
Online ISSN
1745-1361
DOI
10.1587/transinf.E95.D.989
Type of Manuscript
Special Section PAPER (Special Section on Knowledge-Based Software Engineering)
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