共查询到19条相似文献,搜索用时 203 毫秒
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一种支持业务用户编程的服务虚拟化技术--VINCA聚合服务机制 总被引:13,自引:0,他引:13
提出一种支持业务用户编程的服务虚拟化技术——VINCA聚合服务机制,其核心是VINCA聚合服务模型.该模型从业务与IT两个层面出发并“中间相遇”来实现服务资源的虚拟化,从而屏蔽具体服务资源的使用复杂性,使得业务用户更易于直接将业务需求映射到虚拟化的服务资源,为业务用户编程提供支持.定义了VINCA聚合服务的生命周期模型及使用方式,以明确地指导VINCA聚合服务的构造及使用过程.介绍了VINCA聚合服务支撑系统架构,并结合奥运综合信息服务系统的应用场景展示了VINCA聚合服务机制的效果. 相似文献
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一种支持领域特性的Web服务组装方法 总被引:31,自引:3,他引:28
Web服务为软件构件技术提供了良好的工业化基础.软件构件和构架技术的研究也为Web服务的应用奠定了一定的应用基础.在构件组装中,如何支持适应用户需求的Web服务的组装是当前研究的热点之一.该文提出了一种基于优化算法的、支持领域特性的Web服务组装方法,该方法的核心是面向Web服务应用.按照用户确定的功能和QoS需求,基于现有领域模型和Web服务QoS属性,将特定领域的优化组装转化为数学优化问题加以解决.这一方法可以较好地适应用户需求的更改并可以辅助用户选择服务.该文最后给出了支持该方法的原型工具的实验结果,用以说明该方法的可行性与有效性. 相似文献
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为了在软件测试过程中准确沟通测试需求、合理分配测试资源与高效维护测试用例,将业务规则与软件场景结合,建立业务模型,并提出与业务模型相融合的软件测试过程,介绍了基于业务模型生成测试用例的方法与确定测试用例执行顺序的方法.最后,将业务模型应用于实际软件测试项目,证明该模型的适用性与有效性. 相似文献
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如何从服务的提供、运营和使用等多个维度有效组织和管理服务是软件即服务(SaaS)模式下面临的一个重要挑战.以支持服务发现为主要目标的传统服务管理方法难以适应SaaS模式下服务的动态有界、关联演化和可控可测等特征及满足服务全生命周期管控的需求.该文结合全国科技信息服务网实际应用,探索了一种支持科技信息资源整合共享与综合利用的"双向"SaaS模式,并提出一种适于该模式下服务管理的服务社区模型.服务社区模型支持服务元建模和业务规范及服务管控策略自主定义,可以使能面向特定业务领域的有界化和有序化服务管理.文中还针对服务管理边界的演化需求讨论了该模型下的服务社区派生机制.最后,以全国科技信息服务网中的科技信息服务运营管理为具体案例,展示并讨论了服务社区模型的使用方法、应用效果和适用范围. 相似文献
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为支持在用户主导、虚拟组织形态的问题求解环境中,透明访问分布、异构的Web服务资源,提出一种支持业务需求变化性的服务虚拟化机制。基于业务需求变化性的描述方法,给出了蕴含变化性的虚拟服务的描述模型,并基于服务匹配、变换以及特征的求解方法,提出了支持需求变化性的虚拟服务与Web服务之间的虚拟化和具体化操作。分析和实验表明,该机制在支持用户需求变化性的同时,提高了用户使用服务的效率。 相似文献
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针对从初始需求出发逐步构造业务过程模型的问题,提出了一种场景驱动的业务过程模型设计方法。该方法强调场景在整个业务流程中的作用,并以此为核心驱动整个业务过程模型的设计。最后依据设计场景规约抽取构件行为,并进行构件组装与绑定,从而形成结构良好,内容完备的可执行业务过程。最后以实例说明了该方法的应用。 相似文献
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提出了一个事务逻辑和业务逻辑完全分离的事务处理模型,简化了客户端的实施,提高了程序的模块化和重用性。研究了该模型的协调算法和状态转换,把自主意识引入参与者,对协调协议进行了扩展,使之更贴近现实的业务场景。通过使用配置文件确定出现异常时的补偿范围和操作,加强了Web服务环境下对业务活动的支持。 相似文献
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支持即时构造的业务端编程语言VINCA 总被引:3,自引:0,他引:3
提出一种支持Web服务组合、面向业务用户的可视化编程语言VINCA,基于VINCA的应用即时构建方法——业务端编程,帮助业务用户即时构造应用.实现了一个支撑环境,并进行了初步的应用验证。 相似文献
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From cloud computing to cloud manufacturing 总被引:17,自引:0,他引:17
Xun Xu 《Robotics and Computer》2012,28(1):75-86
Cloud computing is changing the way industries and enterprises do their businesses in that dynamically scalable and virtualized resources are provided as a service over the Internet. This model creates a brand new opportunity for enterprises. In this paper, some of the essential features of cloud computing are briefly discussed with regard to the end-users, enterprises that use the cloud as a platform, and cloud providers themselves. Cloud computing is emerging as one of the major enablers for the manufacturing industry; it can transform the traditional manufacturing business model, help it to align product innovation with business strategy, and create intelligent factory networks that encourage effective collaboration. Two types of cloud computing adoptions in the manufacturing sector have been suggested, manufacturing with direct adoption of cloud computing technologies and cloud manufacturing—the manufacturing version of cloud computing. Cloud computing has been in some of key areas of manufacturing such as IT, pay-as-you-go business models, production scaling up and down per demand, and flexibility in deploying and customizing solutions. In cloud manufacturing, distributed resources are encapsulated into cloud services and managed in a centralized way. Clients can use cloud services according to their requirements. Cloud users can request services ranging from product design, manufacturing, testing, management, and all other stages of a product life cycle. 相似文献
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As the world increasingly moves towards a knowledge-based economy, user requirements become an important factor for enterprises to drive product collaborative design evolution. To map user requirements to the product model, user requirements are generally extracted into knowledge that can be used for design decisions. However, because users are interest-driven participants and not professional design engineers, the effect of user knowledge acquisition is not ideal. There are significant challenges for rapid knowledge acquisition with dynamic user requirements. This paper presents an approach to user knowledge acquisition in the product design process, which obtains the tangible requirements of users under the premise that users are adequate for participation. In this approach, the typical information flow is divided into four stages: submission, interaction, knowledge discovery, and model evolution. In the submission stage, natural language processing technology is used to transform text form solutions into data, so that computer technology can be applied to manage large-scale user requirements. In the interaction stage, users are helped to improve their solutions by the iterative recommendation process. In the knowledge discovery stage, after less concerned partial solutions are removed and vacant items are predicted to be supplemented, the final collection of user design information is obtained. Finally, based on rough set theory, design knowledge can be extracted to support the decision of the product model. The washing machine design project is used as a case study to explain the implementation of the proposed approach. 相似文献
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Web services-based business composition brings a number of advantages to the enterprise application development. How to select and compose the web services based on their functionality and QoS (Quality of Service) dynamically prove to be more and more important. In this paper we develop a proxy-based framework to compose Web services dynamically. The framework is featured with a QoS model, an effective service discovery and selection algorithms to facilitate the dynamic integration of Web services and management of abnormalities. Furthermore, a business process constructing method based on service slice is put forward to satisfy the users’ personalized requirements more effectively and flexibly. Our study concerns both functionality and QoS characteristics of Web services to identify the optimal business process solutions. A Complete case study is also included in this paper and the performance demonstrated that the framework and algorithms can provide a tangible and reliable solution to dynamic Web service composition and adaptation. 相似文献
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Pankaj U. Zine Makarand S. Kulkarni Arun K. Ray Rakesh Chawla 《Journal of Intelligent Manufacturing》2016,27(6):1237-1259
Service system design process is complex in nature and involves many stakeholders. The process becomes more critical in the context of machine tools due to market competition, complexity of services, competency requirements and cost constraints. The objective of this paper is to propose a generic approach for the design of a service system for machine tools which can support a variety of business models along with meeting customers’ demand for flexibility. The proposed approach makes use of fundamental service design steps and offers flexibility to the customers to choose the services, service mechanisms, service levels and service frequencies as per their requirements considering the economic aspects, and thus underlines the involvement and participation of customers in the service design process. It also facilitates service designers to visualize the roles of stakeholders involved in the service process and highlights the importance of customer involvement for customer service assurance and better service experience. Application of the approach is discussed through a case study conducted in association with a leading Indian machine tool manufacturing group. 相似文献
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P.T. Helo Author Vitae Q.L. Xu Author Vitae Author Vitae R.J. Jiao Author Vitae 《Computers in Industry》2010,61(1):44-52
Configuration design for mass customized vehicles necessitates the coordination of customer requirements, product characteristics, production processes, and logistics networks, in order to achieve rapid response to customer orders. Existing product configurators are mainly used as sales tools, and fail to account for the requirements of the entire customer order fulfillment process. In this regard, this paper proposes an Integrated Vehicle Configuration System (IVCS) to facilitate customer order processing based on information from multiple domains in a mass customization environment. An IVCS business model is proposed to incorporate the decision factors for configuration design related to different planning stages. The business model is supported by a comprehensive ontology framework, which enhances communications between different stakeholders involved in the order fulfillment process. The configuration approach is based on combinations of selective and generative rules and can be integrated with existing ERP systems. It also provides mechanisms to handle configuration rules that allow users to convert soft preferences into product specifications, bill-of-materials, and, furthermore, into logistics configurations. An example of a computerized configuration system showcases the process from customer engineering to design and production. 相似文献
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Web service orchestration represents an open and standards-based approach for connecting web services together leading to higher level of business processes. Business Process Execution Language (BPEL) engines are designed to handle this orchestration. However, web service compositions into BPEL suffer from several non-functional requirements such as security. To address this problem, we propose in this paper a novel approach that is based on a harmony between the licensing concept offered by eXtensible rights Markup Language (XrML), aspect-oriented programming (AOP), and web service compositions in BPEL. Our proposed approach, based on XrML, offers the ability to associate security licenses with activities offered by the composite web services. It allows to automatically generate BPEL aspects depending on the developed licenses, to separate between crosscutting concerns of the composed web services, and provides an easy way to include and update the non-functional requirements (e.g., security) into a BPEL process. It offers also the ability to validate the licenses, at runtime and without affecting the business logic of this model. To evaluate our approach, we have developed an inventory control system (ICS) sample that is composed of several web services. Case study and performance analysis are presented to demonstrate its feasibility as well. 相似文献