A Workflow Model Supporting Flexible Process Using Activities Combination at Run Time
Dealing with changes in processes has becomeunavoidable in deploying workflow. To improve the abilityof workflow management in dealing with changes hasemerged as a hot research topic in the area of workflowmanagement. According to the changeable characteristics,workflow processes are categorized into dynamic,adaptive and flexible processes. In this paper, weprimarily deal with the flexible processes. Flexibility is theability of workflow process to execute on the basis of aloosely, or partially specified model, where the fullspecification of the model is made at runtime, and may beunique to each instance. To provide full support forflexibility, we propose a simple but applicable flexibleworkflow model based on ECA rules and composition ofactivities at runtime. Furthermore, selection constraintsand composition constraints are put forward to ensure thevalid selection and composition of activities at runtime.We also design two algorithms, one is to automate thecomposition with the best concurrence which is defined asthe ability of activities to be executed in parallel and theother is to verify the validness of the manual selection andcomposition.
Deng ShuiGuang Yu Zhen Wu ZhaoHui Huang LiCan
College of Computer Science,Zhejiang University,HangZhou(310027) China (P.R.C)
国际会议
厦门
英文
409-417
2004-05-26（万方平台首次上网日期，不代表论文的发表时间）