With the growing popularity of data-intensive services on the Internet, the traditional process-centric model for business process meets challenges due to the lack of abilities to describe data semantics and dependenc...With the growing popularity of data-intensive services on the Internet, the traditional process-centric model for business process meets challenges due to the lack of abilities to describe data semantics and dependencies, resulting in the inflexibility of the design and implement for the processes. This paper proposes a novel data-aware business process model which is able to describe both explicit control flow and implicit data flow. Data model with dependencies which are formulated by Linear-time Temporal Logic(LTL) is presented, and their satisfiability is validated by an automaton-based model checking algorithm. Data dependencies are fully considered in modeling phase, which helps to improve the efficiency and reliability of programming during developing phase. Finally, a prototype system based on j BPM for data-aware workflow is designed using such model, and has been deployed to Beijing Kingfore heating management system to validate the flexibility, efficacy and convenience of our approach for massive coding and large-scale system management in reality.展开更多
从活动依赖性的角度提出一种支持业务专家修改业务流程的BPMS模型D-BPMS(dependence basedbusiness process management system),即能够使业务专家按照业务需求通过调整业务活动之间的依赖关系和配置业务活动的属性达到调整业务流程的...从活动依赖性的角度提出一种支持业务专家修改业务流程的BPMS模型D-BPMS(dependence basedbusiness process management system),即能够使业务专家按照业务需求通过调整业务活动之间的依赖关系和配置业务活动的属性达到调整业务流程的目的。它在体系结构上分为表示层、流程逻辑层、业务逻辑层和数据层四个层次。在流程逻辑层采用消息传递机制设计算法实现流程结构变化模式,证明了D-BPMS模型变化模式的完备性和变化的可验证性,并可用Petri网来验证流程变化的正确性。展开更多
构件和服务等软件实体的动态更新是支撑软件系统在线演化的关键技术,该技术可以在不中断系统运行的前提下对软件系统的结构或行为进行调整。然而,为保证更新前后系统行为的一致性,只有当软件实体处于安全状态时方可进行更新。以基于WS-B...构件和服务等软件实体的动态更新是支撑软件系统在线演化的关键技术,该技术可以在不中断系统运行的前提下对软件系统的结构或行为进行调整。然而,为保证更新前后系统行为的一致性,只有当软件实体处于安全状态时方可进行更新。以基于WS-BPEL(Web Service Business Process Execution Language)的软件系统为例,通过分析WS-BPEL过程与其成员服务间的依赖关系,提出了一种可预判成员服务是否动态更新的算法。实验结果表明,依赖分析算法可以有效预判成员服务可动态更新的时机,从而在不影响系统行为一致性的前提下有效减少动态更新所引起的服务中断。展开更多
基金supported by the National Natural Science Foundation of China (No. 61502043, No. 61132001)Beijing Natural Science Foundation (No. 4162042)BeiJing Talents Fund (No. 2015000020124G082)
文摘With the growing popularity of data-intensive services on the Internet, the traditional process-centric model for business process meets challenges due to the lack of abilities to describe data semantics and dependencies, resulting in the inflexibility of the design and implement for the processes. This paper proposes a novel data-aware business process model which is able to describe both explicit control flow and implicit data flow. Data model with dependencies which are formulated by Linear-time Temporal Logic(LTL) is presented, and their satisfiability is validated by an automaton-based model checking algorithm. Data dependencies are fully considered in modeling phase, which helps to improve the efficiency and reliability of programming during developing phase. Finally, a prototype system based on j BPM for data-aware workflow is designed using such model, and has been deployed to Beijing Kingfore heating management system to validate the flexibility, efficacy and convenience of our approach for massive coding and large-scale system management in reality.
文摘从活动依赖性的角度提出一种支持业务专家修改业务流程的BPMS模型D-BPMS(dependence basedbusiness process management system),即能够使业务专家按照业务需求通过调整业务活动之间的依赖关系和配置业务活动的属性达到调整业务流程的目的。它在体系结构上分为表示层、流程逻辑层、业务逻辑层和数据层四个层次。在流程逻辑层采用消息传递机制设计算法实现流程结构变化模式,证明了D-BPMS模型变化模式的完备性和变化的可验证性,并可用Petri网来验证流程变化的正确性。
文摘构件和服务等软件实体的动态更新是支撑软件系统在线演化的关键技术,该技术可以在不中断系统运行的前提下对软件系统的结构或行为进行调整。然而,为保证更新前后系统行为的一致性,只有当软件实体处于安全状态时方可进行更新。以基于WS-BPEL(Web Service Business Process Execution Language)的软件系统为例,通过分析WS-BPEL过程与其成员服务间的依赖关系,提出了一种可预判成员服务是否动态更新的算法。实验结果表明,依赖分析算法可以有效预判成员服务可动态更新的时机,从而在不影响系统行为一致性的前提下有效减少动态更新所引起的服务中断。
