Recovery Issues in Web-Based Workflow

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This paper surveys the work done by the LSDIS Lab on recovery for workflow. It then focuses on recovery issues for Web-based workflow with the Web-Work enactment service used as a case study. The WebWork enactment service emphasizes ease of development of workflow applications, installation, and use. WebWork provides low overhead, yet what we believe to be effective recovery mechanisms. The paper classifies ten different type of errors or failures that one is likely to encounter in Web-based workflows and explains how WebWork deals with each of them.


Presented at the 12th International Conference on Computer Applications in Industry and Engineering, Atlanta, GA, November 4-6, 1999.

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