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近年来,处理更高级别的事件(通常被称为业务事件)的需求迅速扩大,复杂事件处理(Complex Event Processing,CEP)的发展满足了这些新的市场需求。CEP能结合来自多个数据源的数据来推断更为复杂的事件或模式。CEP的目标是从事件流中找出有意义的事件(如机会或威胁),并尽快做出反应。文本介绍了CEP的研究现状,包括通用的参考架构,代表性的CEP系统及其事件处理语言,以及最常见的应用场景。 相似文献
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现有的服务发现研究大多基于功能,以服务为粒度考察服务.而服务是以操作为粒度与用户进行交互的.服务发现与使用粒度上的差异,使服务不能发挥最大效能.为此提出了一种从业务层面,以操作为粒度,考察服务对用户需求业务适用程度的服务发现方法.通过定义面向业务应用的服务与用户需求描述模型,建立领域业务应用本体为服务提供者和使用者的业务级交互奠定基础.通过服务与用户业务需求的深层匹配,在发现可用服务及其操作的同时,对服务的业务规范性和业务完备性进行评估.最终给出了一种面向业务应用的服务发现方法. 相似文献
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复杂事件处理(CEP)技术是目前对高速事件流中蕴含信息进行实时分析的最佳技术,重点应用于事件驱动架构系统中,能够帮助业务应用实现智能化处理。为报告其研究发展现状,在给出CEP基本含义及显著特征的基础上,首先提出了由9个模块组成的CEP系统通用结构模型;然后综述了模型中重要部分相关关键技术的分类与形式化基础;同时设计了CEP在物流物联网中综合应用的框架模型,由此得出了CEP技术的优点及作用;最后指出了目前存在的不足及未来的研究方向。从理论与实践两方面对CEP技术进行了系统、详细、深入的剖析,以期推动其继续发展。 相似文献
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随着面向服务计算技术的日渐普及,通过互联网提供的科研领域的Web服务也越来越多,目前仅在生物信息领域可统计到的Web服务数量就超过3000个.然而,怎样在业务层上将最终用户的个性化需求快速实例化到具体的Web服务,成为很多专业工作者关心的问题,生物信息领域尤其突出.为了解决这个问题,提出一种利用继承关系的业务服务实例化方法,该方法基于我们前期工作中提出的抽象服务形式--业务服务,通过对基类业务服务的继承操作构建表达最终用户个性化需求的子类业务服务,同时建立了两个业务服务之间的继承关系,并且利用这种继承关系将最终用户的个性化需求快速实例化到具体的Web服务. 相似文献
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Business services are customisable, interactive processes that providers have the potential to carry out together with clients
that benefit from the effects. It is understood that business service transactions are best organised by means of virtual
networks, where information technology allows for configuring multiple providers and processes on a per-request basis. Existing
conceptual models for virtual service enterprises (VSEs) propose business service virtualisation for flexible and agile regulation
and control of coordination between multiple providers and clients. In this paper, we present an approach for realising business
service virtualisation based on software service technology. In particular, we propose a service-oriented software architecture
for representing virtual business service processes as e-services. E-service models specify flexible business service interactions
between multiple providers and clients of virtual service enterprises and allow for regulation and enforcement of their coordination.
We demonstrate the utilisation of our e-service SOA in the context of an e-science scenario, where we show how to design e-service
models for the use case of virtual polymorph prediction laboratories. 相似文献
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面向服务体系结构(Service-Oriented Architecture SOA)的核心理念是业务驱动,采用松耦合的、灵活的体系结构来满足随需应变的业务需求,支持动态的企业应用集成。针对目前企业业务和数据的紧密耦合缺陷,本文提出了一种以业务服务总线(Business Service Bus)和数据服务总线(Data Service Bus)为核心的企业应用集成参考模型,并且给出了业务服务总线和数据服务总线的具体设计,实现了企业业务和数据的松散耦合。 相似文献
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While constructing virtual enterprises, it is crucial to flexibly integrate heterogeneous business resources and processes of different business partners and make them collaborate dynamically. Keeping involved IT systems or components as autonomous and loose-coupled services, the “Everything as a Service” concept supports flexible integration of heterogeneous applications. We adopt this concept and analyze the challenges in virtual enterprise construction, then propose a service platform for on-demand virtual enterprises. The platform supports flexible integration of networked resources, and facilitates virtual enterprise construction with business process utility, trusted service composition and data service centric business collaborations. At the end of the paper, together with a case study, experimental evaluations in contexts of concurrent multi-users are presented, showing the effectiveness and performance of the platform. 相似文献
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在面对服务架构中,业务逻辑由各种服务组件组合完成,不同服务组件完成不同业务流程的业务逻辑。面对不断变化和发展的商业环境,服务的组合性需要具有灵活性和可靠性。虽然目前已有多种方法能够优化和改善面对服务系统,但是针对服务编排自动化的应用和研究较少,这主要归因于复杂的业务逻辑和繁琐的服务编排工具。介绍一种采用一阶内涵逻辑语言(FOIL)为业务流程建立其业务逻辑的FOIL公式,通过计算FOIL公式,自动生成WS-BPEL结构以动态绑定已有的服务组件,最终完成自动服务编排。Tarski的真值理论证明这种方法具有实际应用价值。 相似文献
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Yinsheng Li Jianping Shen Junshuai Shi Weiming Shen Ying Huang Yingxiao Xu 《Advanced Engineering Informatics》2008,22(3):328-339
Enterprises need to be responsive to meet dynamic businesses and requirements. Service-oriented architecture and Web services can improve e-Business systems to be integrated and flexible. This paper proposes a multi-model driven collaborative development platform for service-oriented e-Business systems. The platform provides engineers/consultants with three views, i.e., business view, process view, and service view to support service-oriented software engineering, top-down business design and bottom-up service composite and development. The views are kept consistent through model-driven translation mechanisms. The platform employs three models, i.e., service meta-model, process model and business model to implement the translation. On the platform, business and technical consultants/engineers can use the views designated for their roles to collaborate for a service-oriented e-Business system based at the distributed sites of, e.g., IT vendors and their clients. The collaboration is featured with visual development and rapid demonstration. Comparingly, most of the mainstream development environments focus on object-oriented application development other than service-oriented business process modeling. The platform has been developed and deployed in an innovation centre to be evaluated by visiting customers. 相似文献
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Christian Zirpins Wolfgang Emmerich 《Service Oriented Computing and Applications》2008,2(2-3):145-166
Virtual organisation of collaborative networks frequently demands for information and communication technology to support coordination of cross-organisational business process chains. Service-oriented software technologies provide promising means to regulate and enforce coordination of cross-organisational software service interactions but miss organisational abstractions and methodology. This paper proposes a conceptual reference model of collaborative network coordination that satisfies flexibility and agility requirements of virtual organisation by building on common software service abstractions and lifecycle methodology. In particular, the model focuses collaborative service networks and introduces the concept of virtual business service that represents business service processes as software service abstractions and supports flexible regulation and agile enforcement of their coordination by means of software service lifecycle methodology. For demonstration and evaluation purpose, we present a case study of service-oriented systems analysis for virtual organisation of a collaborative e-science network that adopts our conceptual reference model. 相似文献
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基于TLA的SaaS业务流程定制及验证机制研究 总被引:5,自引:0,他引:5
SaaS模式已成为当前流行的软件服务形式.为满足不同租户个性化的业务服务需求,SaaS模式必须提供灵活的定制机制.为此,提出了一个支持租户业务流程定制行为建模及验证的框架.该框架以层次定制行为约束图作为定制指导,通过TLA(Temporal Logic of Actions)对各层的原子定制活动建模,并以此为基础构建租户的全局定制行为,然后基于应用的业务规则约束设计算法验证全局定制行为的正确性;为有效提高租户的定制效率,基于对多租户已有正确定制结果的统计分析,设计定制推荐算法,合理减少验证次数.仿真实验结果证实了该机制的高效性及可靠性. 相似文献