网格的全生命周期原理及应用

网格系统的基本特征和要求是动态开放性，体现为主体的用户、客体的资源是松耦合的，随着时间和空间而动态变化，主体和客体的行为及状态是由一系列生命周期构成，比如主体的注册、登录、使用、挂起、维护、退出、注销周期，以及客体资源的创建、集成、部署、使用、下线、维护、消亡周期，网格的设计、使用和评价需要突破传统的观念，对实体对象的生命周期全过程进行考察，称之为网格的全生命周期原理，提出并定义网格的生命周期、全生命周期、全生命周期生产率和它们之间的关系，利用全生命周期原理，对比传统的计算机系统的评价和使用方法，对典型的网格应用场景进行分析，试图更精确地说明网格的使用和评价问题。     

面向网络化制造的ASP服务全生命周期管理技术

提出ASP服务全生命周期管理的概念．在对ASP服务作出形式化定义的基础上,建立了服务的生命周期状态模型;进而,对ASP服务管理中的服务集成规范、服务启动流程、运行监控以及服务评价等关键技术实现方案进行了探讨;最后,介绍了该技术在绍兴轻纺区域网络化制造系统中的应用实例．     

网格工作流描述语言及相关工具的研究和设计

网格工作流描述语言是网格工作流中一个很重要的部分,针对目前Web服务商业流程描述语言BPELAWS描述网格服务工作流缺少表示性的不足,提出并设计了网格工作流描述语言(GridBPEL)中的网格服务生命周期部分,开发完善了网格工作流流程定义工具(GridWF_editor)的基本模块和关键类库,为网格工作流的进一步研究与应用奠定了基础.     

数据网格中间件向IPv6移植的分析与实现*

在科学数据网格项目背景下,简单叙述了IPv6的优势和它将为网格系统带来的好处。对科学数据网格和数据网格中间件DAS系统作了整体介绍,分析了DAS系统向IPv6环境移植所涉及到的主要技术与IPv6的关系,并指出了DAS系统向IPv6移植实现过程中所进行的主要工作。     

信息网格虚拟社区模型的全生命周

社区原理是解决网格开放、无序问题的一种方法。本文结合中科院计算所织女星信息网格计划的具体工作，研究了信息网格中社区的模型及全生命周期。     

PLM中产品数据的建模及其过程状态的管理

采用面向对象的思想,论述了PLM中基于零部件的产品数据的组织形式,包括产品模型、定型产品。在此基础上,提出了基于时间点衡量产品数据过程状态的方法,结合工程变更来管理过程状态的改变,为企业实现产品数据的全生命周期管理以利于信息的集成提供了新的思路。     

服务组合生命周期研究

随着Web服务的快速发展及广泛应用,如何灵活高效地建立有效的组合服务已成为研究热点。针对服务组合生命周期的研究,通过定义阶段、选择阶段、构造阶段以及执行阶段等各生命周期阶段的功能划分,实现灵活高效的服务组合;通过有效性维护阶段保持服务注册中心中的服务信息以及组合服务定义的有效性,最终保证组合服务的成功执行。     

信息网格虚拟社区模型的全生命周

社区原理是解决网格开放、无序问题的一种方法。本文结合中科院计算所织女星信息网格计划的具体工作,研究了信息网格中社区的模型及全生命周期。     

服务概念二重性的中间对齐方法

针对面向服务的动态ERP系统在开发过程中存在的逻辑服务与物理服务对齐问题,提出一种服务概念二重性的中间对齐方法,该方法包含了结构一致性和内容隶属关系的描述,在动态ERP库存管理领域中,从服务分类、服务暴露和服务实现3个方面给出该方法的一个应用实例,仿真实验结果表明,该方法能够实现候选逻辑服务向物理服务的无缝转换,完善了动态ERP系统中的SOA生命周期模型。     

基于面向服务架构的敏捷供应链信息集成研究

在分析敏捷供应链信息系统的特性及需求的基础上结合Web Service技术和面向服务架构（SOA）思想,从生命周期角度描述了整个敏捷供应链信息集成的整个生命周期过程,并且提出了基于面向服务架构和Web Service实现技术的信息集成系统框架,简要分析了如何采用Web Service技术来实现整个系统,分析了实现过程中可能遇到的实际问题及将来进一步的研究方向.     

面向航空维修的语义SOA框架构建研究

以航空维修服务行业为背景,在分析以往信息技术解决方案应用于航空维修管理系统中弊端的基础上,结合产品全生命周期管理理念,构建基于语义面向服务架构的航空维修系统体系结构;深入研究体系结构中资源层、基础构造层、实现层及应用层的构建,进而探讨企业间业务流程协同的实现,以优化航空维修供应链企业间异构平台、系统间的信息集成和知识共享,提高其企业间业务协同的效率。     

GIS项目管理框架探讨

不少学者注重从软件工程的角度研究GIS的开发与实施,但笔者认为,也应当引入项目管理补充软件工程,指导GIS开发、实施与应用。文章辨析了工程与项目内涵,在此基础上提出了GIS应用从软件工程向项目管理的思维转换,并依据项目管理要求和GIS开发方法特点,提出了一个初步的GIS项目管理框架,涉及项目生命周期、项目目标管理、应用开发方法、项目管理功能和项目环境因素。笔者期望能够根据该框架,将目前GIS开发和管理方面的理论和方法综合起来,丰富GIS开发和管理知识,对其它信息系统项目管理具有借鉴作用。     

ELDAMeth: An agent-oriented methodology for simulation-based prototyping of distributed agent systems

In application domains, such as distributed information retrieval, content management and distribution, e-Commerce, the agent-based computing paradigm has been demonstrated to be effective for the analysis, design and implementation of distributed software systems. In particular, several agent-oriented methodologies, incorporating suitable agent models, frameworks and tools, have been to date defined to support the development lifecycle of distributed agent systems (DAS). However, few of them provide effective validation methods to analyze design objects at different degrees of refinement before their actual implementation and deployment. In this paper, ELDAMeth, a simulation-based methodology for DAS, which enables rapid prototyping based on visual programming, validation, and automatic code generation for JADE-based DAS, is presented. ELDAMeth can be used both stand-alone for the modeling and evaluation of DAS and coupled with other agent-oriented methodologies for enhancing them with simulation-based validation. In particular, the proposed methodology, which is based on the ELDA (Event-driven Lightweight Distilled StateCharts-based Agents) agent model, provides key programming abstractions (event-driven computation, multi-coordination, and coarse-grained strong mobility) very suitable for highly dynamic distributed computing and is supported by a CASE tool-driven iterative process seamlessly covering the detailed design, simulation, and implementation phases of DAS. A simple yet effective case study in the distributed information retrieval domain is used to illustrate the proposed methodology.     

An Overview of the TINA Management Architecture

This paper presents an overview of theTelecommunications Information Networking Architecture(TINA) management architecture, using four distinctaxes: partitioning, functional, computational and lifecycle. The TINA management architecture is shown tosatisfy service and resource management requirements ina distributed, multi-stakeholder environment.     

ITIL refreshed

A new set of ITIL core books, version 3, were released at theend of May, and accompanying Foundation level examinations havebegun. Other qualifications and complementary products are tofollow, based on the renewed lifecycle approach to best practicein service management, as Helen Boddy reports.     

Product relationships management enabler for concurrent engineering and product lifecycle management

The current competitive industrial context requires more flexible, intelligent and compact product lifecycles, especially in the product development process where several lifecycle issues have to be considered, so as to deliver lifecycle oriented products. This paper describes the application of a novel product relationships management approach, in the context of product lifecycle management (PLM), enabling concurrent product design and assembly sequence planning. Previous work has provided a foundation through a theoretical framework, enhanced by the paradigm of product relational design and management. This statement therefore highlights the concurrent and proactive aspect of assembly oriented design vision. Central to this approach is the establishment and implementation of a complex and multiple viewpoints of product development addressing various stakeholders design and assembly planning points of view. By establishing such comprehensive relationships and identifying related relationships among several lifecycle phases, it is then possible to undertake the product design and assembly phases concurrently. Specifically, the proposed work and its application enable the management of product relationship information at the interface of product-process data management techniques. Based on the theory, models and techniques such as described in previous work, the implementation of a new hub application called PEGASUS is then described. Also based on web service technology, PEGASUS can be considered as a mediator application and/or an enabler for PLM that externalises product relationships and enables the control of information flow with internal regulation procedures. The feasibility of the approach is justified and the associated benefits are reported with a mechanical assembly as a case study.     

An agent-based hybrid service delivery for coordinating internet of things and 3rd party service providers

When smart embedded devices become widely used in business and industry, many applications and services will emerge in a new Internet of Things (IoT) ecosystem. This will initiate new business opportunities in providing these novel applications and services, which integrate efficiently IoT services into business applications. Because IoT takes the reference scenarios further in terms of scale and features offered, it requires the development of suitable, scalable and available service delivery platforms that permit multiple services to coexist between IoT and 3rd party service providers. However, service delivery over IoT infrastructures is a difficult challenge that requires specific new architecture and mechanisms. This paper proposes a system architecture of hybrid service delivery that enables 3rd party service providers to create, deploy, execute, orchestrate, and manage efficiently the running instances of IoT services. In particular, this work focuses on the design and implementation of: agent-based hybrid service exposure, a hybrid service ontology engine crawler, a service enablers container, service-oriented agent lifecycle management, and an agent-mediated service lifecycle coordinator for messages dispatching and transformation between hybrid service exposure and the service enablers container. More specifically, with smart home scenarios, experimental results show that agent-based service delivery approaches could successfully coordinate between IoT and 3rd party service providers.     

浅谈IT服务的可用性设计方法

2011年新版ISO／IEC20000的发布,为IT服务管理的实施提供了参照标准。本文根据ISO／IEC 20000：2011版中的IT服务可用性要求,提出面向客户服务级别需求设计和实现IT服务的可用性,并指出可用性设计是实现高质量IT服务的有效途径。     

综合服务资源管理系统的设计与实现

综合服务模型旨在为不同的业务类型提供所需的服务质量，服务质量保证的实现是依赖于对系统资源的合理分配，管理和使用，该文介绍了综合服务资源管理软件在Linux操作系统上的设计和实现，并给出了对该软件系统的测试结果。