摘要
为了实现制造网格平台中业务流程的构建、执行和管理监控,分析了制造网格环境下工作流的特点,在传统的工作流框架上进行扩充,提出了制造网格工作流框架和基于服务的抽象工作流模型。根据工作流查找和绑定服务的时机,将工作流分为服务模型建立、服务发现、服务绑定和服务调用4个阶段。根据工作流抽象模型中活动说明的服务质量需求和服务描述中的服务质量(QoS)属性,选用不同的服务发现策略,使同一个活动的不同实例能够绑定不同的服务,提高了制造网格工作流的柔性和自适应性。结合一个实例予以了验证。
To build, run and manage the business process on Manufacturing Grid, we analyzed the characteristics of MG workflow. Extended workflow management system architecture and an abstract workflow model based service were proposed. According to the moment searching and binding the service, the workflow included service model building, service finding, service binding and service invocation. Through contrasting QoS requirements of the activity specifications in the workflow abstraction model with QoS parameters of service, different instances of the same activity can be bound to different services according to different service finding strategies. Higher flexibility and self adaptability of the MG workflow are achieved. A case study and the implementation were also presented.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2006年第11期1148-1153,共6页
China Mechanical Engineering
基金
上海市教委E研究院-上海高校网格项目(200302)
关键词
制造网格工作流
抽象工作流模型
动态绑定
服务质量
manufacturing grid（MG） workflow
abstract workflow model
dynamic binding
quality of serviee（QoS）
