工作流管理系统动态变更模型与实例迁移方法研究  

Dynamic change model and instance migration approach for workflow management system

作　　者：高新勤[1] 李宗斌[1] 杜轩[1] 

机构地区：[1]西安交通大学机械工程学院机械制造系统工程国家重点实验室,陕西西安710049

出　　处：《计算机集成制造系统》2008年第8期1521-1528,共8页Computer Integrated Manufacturing Systems

基　　金：国家863/CIMS主题资助项目(2007AA04Z121);国家自然科学基金资助项目(60773117)~~

摘　　要：为提高工作流管理系统的柔性,研究了工作流动态变更模型和实例迁移方法。在基于统一建模语言和多色集合的工作流集成建模方法的基础上,建立了工作流动态变更模型,对节点(分支)的增加、删除和结构变化等常见动态变更进行了形式化描述。提出了工作流区域的概念,将当前运行节点和动态变更节点放在同一个层次上排序。基于基本模型结构的简化规则,提出了工作流区域的识别算法和排序规则。按照工作流实例迁移过程中可能采用的迁移策略,提出了支持动态变更的工作流实例迁移方法,并分析了实例迁移前后结构和语义的正确性。最后,以客户订单处理流程为例,验证了以上模型和方法的有效性。To improve the flexibility of workflow management system, workflow dynamic change model and instance migration approach were studied. By using the workflow modeling method which was based on Unified Modeling Language （UML） and polychromatic sets, workflow dynamic change models were established and frequent dynamic changes, such as addition, deletion and construction transformation of nodes/branches were described formally. Concept of workflow region was defined to sort the currently running nodes and the dynamic changing nodes on the same level. Base on simplification rules of basic model structures, recognition algorithm and sorting rules for workflow region were advanced. According to possible migration policies which might be adopted during instance migration, workflow instance migration approach supporting dynamic changes was presented, and structure and semantic correctness before/after instance migration were also analyzed. An example of order processing was used to verify the effectiveness of the proposed model and approach.

关 键 词：柔性工作流 管理 统一建模语言 多色集合 动态变更 实例迁移 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论] TH166[自动化与计算机技术—计算机科学与技术]