Resiliency variance in workflows with choice

  • John C. Mace*
  • , Charles Morisset
  • , Aad van Moorsel
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Computing a user-task assignment for a workflow coming with probabilistic user availability provides a measure of completion rate or resiliency. To a workflow designer this indicates a risk of failure, especially useful for workflows which cannot be changed due to rigid security constraints. Furthermore, resiliency can help outline a mitigation strategy which states actions that can be performed to avoid workflow failures. A workflow with choice may have many different resiliency values, one for each of its execution paths. This makes understanding failure risk and mitigation requirements much more complex. We introduce resiliency variance, a new analysis metric for workflows which indicates volatility from the resiliency average. We suggest this metric can help determine the risk taken on by implementing a given workflow with choice. For instance, high average resiliency and low variance would suggest a low risk of workflow failure.

Original languageEnglish
Title of host publicationSoftware Engineering for Resilient Systems - 7th International Workshop, SERENE 2015, Proceedings
EditorsAlessandro Fantechi, Patrizio Pelliccione
PublisherSpringer Verlag
Pages128-143
Number of pages16
ISBN (Print)9783319231280
DOIs
Publication statusPublished - 2015
Event7th International Workshop on Software Engineering for Resilient Systems, SERENE 2015 - Paris, France
Duration: 7 Sept 20158 Sept 2015

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume9274
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference7th International Workshop on Software Engineering for Resilient Systems, SERENE 2015
Country/TerritoryFrance
CityParis
Period7/09/158/09/15

Bibliographical note

Publisher Copyright:
© Springer International Publishing Switzerland 2015.

Keywords

  • Quantitative analysis
  • Resiliency metrics
  • Workflow satisfiability problem

ASJC Scopus subject areas

  • Theoretical Computer Science
  • General Computer Science

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