基于业务流程的制造云服务组合模型

Composite model of manufacturing cloud service based on business process

为了提高云制造系统中制造云服务的组合成功率,实现组合云服务与用户业务需求的准确匹配,在对制造云服务、流程节点任务、云服务的可组合性和流程匹配进行形式化描述的基础上,提出一种基于业务流程的制造云服务组合模型。该模型由业务流程引擎、业务流程、选择逻辑、评估逻辑、监控逻辑、知识库和原子云服务集构成,在功能匹配的基础上,对候选服务的可组合性进行检查,结合负载、服务质量(QoS)和业务流程信息,选择合适的云服务,并将其挂接在业务流程上实现制造云服务的组合。对制造云服务的组合流程进行了详细描述,并给出云服务组合的实现方法。实例分析表明,该模型能够有效地选择满足业务需求的云服务实体并进行组合,从而提高制造云服务的组合成功率,保障用户制造活动的顺利进行。

Based on the business process, a composite model of manufacturing cloud services was proposed to improve the successful rate of the manufacturing cloud service composition and match the composite cloud service with the user business demand correctly. As the foundation, formal descriptions were given about concepts such as the manufacturing cloud service,the process node task, the service composability and the process matching. The model consisted of the business process engine, the business process, the selection logic, the evaluation logic, the monitoring logic, the knowledge base and the atomic cloud service set. With the function matching, the composability of optional services was checked. The load, the Quality of Service（ QoS） and the business process information were also considered. Then suitable cloud services were selected and integrated into the business process to form the composite manufacturing cloud service. The process of the service composition was described in detail, and the realization method of it was offered. The composite service model was verified through an example. The results prove that the valid cloud service entities can be selected and combined effectively with the model, the successful rate of the service composition is raised, and users＇ manufacturing activities can be carried out smoothly.