Title:
Distributed Workflow Restructuring: An Experimental Study

dc.contributor.author Ruiz, Duncan Dubugras en_US
dc.contributor.author Liu, Ling
dc.contributor.author Pu, Calton
dc.date.accessioned 2005-06-17T17:40:52Z
dc.date.available 2005-06-17T17:40:52Z
dc.date.issued 2002 en_US
dc.description.abstract Workflow systems have been one of the enabling technologies for automation of business processes in corporate enterprises. Many modern production workflows need to incorporate deadline control throughout the workflow management system. However, the increasing volume and diversity of digital information available online and the unpredictable amount of network delays or server failures have led to a growing problem that conventional workflow management systems do not have, namely how to reorganize existing workflow activities in order to meet deadlines in the presence of unexpected delays. We refer to this problem as the workflow-restructuring problem. This paper describes the notation and issues of workflow restructuring, and discusses a set of workflow activity restructuring operators. We illustrate the inherent semantics of these restructuring operators using the Transactional Activity Model (TAM). The paper contains two main contributions. First, we study the environmental instabilities (e.g., resource shortages and network delays) that cause workflows to perform sub-optimally and how workflow restructuring can address this problem. Second, we evaluate the effectiveness of workflow-restructuring operators through simulation. Our initial experiments demonstrate that run-time workflow restructuring can improve response time significantly for unstable environments. en_US
dc.format.extent 423134 bytes
dc.format.mimetype application/pdf
dc.identifier.uri http://hdl.handle.net/1853/6543
dc.language.iso en_US
dc.publisher Georgia Institute of Technology en_US
dc.relation.ispartofseries CC Technical Report; GIT-CC-02-36 en_US
dc.subject Workflow systems
dc.subject Transaction models
dc.subject Delays
dc.title Distributed Workflow Restructuring: An Experimental Study en_US
dc.type Text
dc.type.genre Technical Report
dspace.entity.type Publication
local.contributor.author Liu, Ling
local.contributor.author Pu, Calton
local.contributor.corporatename College of Computing
local.relation.ispartofseries College of Computing Technical Report Series
relation.isAuthorOfPublication 96391b98-ac42-4e2c-93ee-79a5e16c2dfb
relation.isAuthorOfPublication fc48a3de-da43-4d32-af59-414047eb7cd7
relation.isOrgUnitOfPublication c8892b3c-8db6-4b7b-a33a-1b67f7db2021
relation.isSeriesOfPublication 35c9e8fc-dd67-4201-b1d5-016381ef65b8
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