资源描述：
《柔性工作流模型及其查询机制的研究》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、上海交通大学硕士学位论文柔性工作流模型及其查询机制的研究姓名：李晓华申请学位级别：硕士专业：计算机应用指导教师：曹健20060101上海交通大学硕士学位论文柔性工作流模型及其查询机制的研究RESEARCHANDIMPLEMENTABOUTFLEXIBLEWORKFLOWMODELANDPROCESSSEARCHSTRATEGYABSTRACTWorkflowisakindofcoretechnologyusedtoachievebusinessprocessmodeling,optimization,managementandintegration,inordert
2、oimplementbusinessprocessautomation.However,thecurrentworkflowmodelisnotflexibletoadaptthechangeofenvironmentalingredientsautomatically.Besides,ithasthelimitationinsupportinguncertainbusinessandunexpectedevents.Asaresult,itrestrictstheapplicationsforsuchworkflowmanagementsysteminproduc
3、tdevelopmentprocesses.Additionally,becausedifferententerpriseandinstitutionusedifferentworkflowsystem,thecurrentworkflowmodelsarealwaysstoredinheterogeneousmodelrepositories,indifferentformats.Asaresult,anemergencyandcrucialproblemtosolveishowtoobtaintheneededmodelfrommodelrepositoryin
4、ordertosupportthereuseandshareofmodel,sothatthesystembecomesmoreflexible.Inordertosolvetheproblemsabove,theresearchofthispapermainlyfocusesonthemethodfortheimplementationofflexibleworkflowmodelandthestrategyforsearchingworkflowmodelfromheterogeneousprocessrepositories.(1)FlexibleWorkfl
5、owModelAsfortheflexibleworkflowmodelproposedinthispaper,itbasesonECAspecificationandallworkflowmodelsareorganizedbyevent-triggermechanism.Theevent-monitorcapturestheeventwhenithappens,doesthejudgmentsaccordingtoEvent-Condition-Actionspecification,andexecutestheproperactivities.Eacheven
6、ttriggersthespecifiedactivities,andthechangingofactivity’statusbringsaboutnewevents.Forthisreason,thedynamicalcharacteristicsofworkflowmodelcanbedescribedmoreconvenientlybyevents,whichmakestheworkflowsystemmoreadaptabletothecomplexity,diversityandchangeabilityofbusinessprocess.Meanwhil
7、e,theexceptionhandlinghasbeenpaidformoreconsiderationinthispaper.Moreeventsandactionshavebeendefinedandconsideredinordertodealwithmoreexceptions,whichmakestheworkflowmodelmorereliabletohandleallkindsofexceptionsrapidly,andensurestheconsistencyofwholesystem.Besides,morekindsofactionsh
