工作流元模型的研究与应用

由于工作流技术具有在异构环境中处理复杂事务的能力,所以在科学研究、电子政务和商务等方面引起了广泛的关注,涌现出一些研究成果和产品.其中,大部分的研究集中于工作流的调度、与数据库和遗产系统的接口等技术方向,对工作流管理系统的体系结构、模型和定义语言等方面的研究相对来说比较薄弱.分析了工作流联盟的工作流元模型,并结合实际情况,对工作流元模型以及工作流定义语言作了适当的改进和扩展,以适应日益增长的业务过程的变化和新技术的应用.

Study and Application of a Workflow Meta-Model

Having the ability of handling complex transaction in heterogeneous environment, workflow is coming into notice in the area of science research, e-government, e-business, there are lots of research achievements and productions. Major parts of the studies are concentrated in the workflow scheduling, interface with database and legacy system, etc., few efforts are put into the researches of architecture, model and definition language of workflow management system. In this paper, workflow meta-model of WfMC is analyzed. According to real cases, extensions and modifications to workflow meta-model and workflow definition language are introduced, so as to satisfy the increasing variability of business process and application of new technologies.