OGSA平台上基于角色和任务的动态电子商务研究

动态电子商务是电子商务发展的目标,是下一代的电子商务,具有内部与外部复杂的协作关系.OGSA是基于服务和开放的Internet标准,是下一代的网格体系结构.将动态电子商务建立在OGSA上能满足其复杂要求,两者的结合必将给相关领域理论和技术带来巨大的革新.此外,动态电子商务的协作要求具有高效、安全等特点,通过对计算机支持协同工作的深入研究,发现用引入角色和任务的概念可以满足这些特点,然后提出了部分角色继承和任务分类的观点.因此,OGSA平台上基于角色和任务的动态电子商务将是今后研究的热点.     

网格工作流模型和协同机制的研究与实现

网格技术为分布式的资源和服务共享提供了一个标准的平台，工作流在将网格资源和服务组合起来完成较复杂的业务流程具有独特的优势，协同机制保证了分布的组织／个人高效协作的完成工作。在对这三者充分研究的基础上提出了一个基于网格平台的协同工作流模型，探讨了在网格平台上服务、资源协同机制的应用，初步实现了可定制的协同的网格服务流程。     

一种基于角色Agent的层次网格任务调度处理模型

文章讨论了一种新型的网格任务调度模型。该模型将角色层次资源组织、角色工作流、角色协作思想与网格计算相结合,将复杂的计算任务分解成小块并分交给多个节点协同完成,从而使原先只能单节点运行的战术计算功能,现在能由多节点同时处理,有效地解决了传统网格系统中由于任务量太大和处理复杂而产生的诸如：资源使用效率低下,要求服务器配置高,任务调度产生停顿等问题。     

基于角色的多Agent的网格资源管理框架与分配策略

提出了一种适应计算网格分布动态环境的基于角色的多代理的资源管理框架,其核心的三种角色代理都采用BDI（Belief,Desire,Intention）代理模型,利用BDI代理的智能交互,进行协同合作以管理复杂的网格资源。还初步探讨了基于此框架的网格资源优化分配的策略和方法。     

电子商务中网格技术的应用

为适应我国电子商务系统建设的发展，结合网格技术的相关内容，重点研究了网格技术在电子商务领域的应用。电子商务与网格技术相结合不仅可以提高企业的效率、增强企业内外部的共享和交互能力，还可促进我国现代化建设。     

协作环境中的关键技术研究

CSCW的发展提出了构建开放协作环境的需求,网格技术为这一开放协作环境的研究带来了新机遇.构建开放协作环境需综合研究一系列关键技术,包括协作虚拟场地技术、协作感知技术、协同服务总线技术和协同信息共享空间等,并要将这些技术同CSCW的研究成果相融合,包括如工作流技术、各种交互群件技术.本文介绍这一开放协作环境的基本架构,并重点阐述协同信息共享空间研究中协作信息本体模型的研究.     

基于工作流的图像处理网格平台及其遥感应用

图像处理网络平台基于工作流实现资源共享和协同计算,是一个灵活、动态的图像处理问题解决环境.其中,网格工作流技术可满足灵活多变的应用需求,通用服务请求代理能实现异构网格服务的简单调用,动态工作流模型利用具有较强描述功能的扩展有向无环图建模语言进行定义.该平台已成功地应用于遥感图像处理.     

数据网格中数据交互处理模式研究

作为业界的研究新热点——网格技术,随着其应用领域的拓展,其具体的应用网格也由单纯的计算网格发展到数据网格、拾遗网格、信息服务网格等应用重点不同的具体应用网格。该文简单探讨了数据网格的体系结构及应用场景,并着重对在数据网格中所出现的不同数据交互处理模式进行了探讨。针对其应用条件和场合的不同,将数据网格中的数据交互处理模式分为三大类六个不同的处理模式,对每种模式的具体工作机制进行了探讨,并给出了一定的应用描述。     

网格环境下经济模型研究

网格经济学是当前研究的一个热点,合理利用经济学理论中已经具有大量实践成果的各种心理模型．对与构造网格经济学智能代理是非常有意义的。介绍在网格中使用市场经济模型的趋势．抽象了网格中进行资源管理的经济模型中的典型角色和它们之问的交互．讨论现有的用于资源分配的各种经济模型以及各自的优缺点。     

一种基于SOA架构和网格计算的协同商务平台框架研究

首先提出了网络环境下协同商务的模型,采用面向服务体系(SOA)的思想,基于网格服务构建了一种协同商务平台的框架,用网格服务封装企业内部和企业之间的业务系统接口.通过网格服务的发现、集成、调用实现协同电子商务.其目的是实现企业内部、供应链企业之间以及企业外部各层次(客户、政府和其他机构)之间的协同.最后给出了这种框架的实...     

航空制造业虚拟企业协作平台设计研究

航空制造业虚拟企业的生产计划和控制有赖于联盟企业的信息协作。虚拟企业协作平台使航空制造业生产网络内部不同企业主体之间的知识与技术的传递与转移机制与路径得以实现。本文设计的CSSCM平台提供的企业服务和项目服务,主要功能有保障全局信息与共享信息的传递与转移,内部信息的控制和维护,同时其协同管理的功能能将分布式协同项目管理与协作支持技术进行有机的结合,有力地保障航空制造业虚拟企业间信息的处理与传递。     

Telerobot-enabled HUB-CI model for collaborative lifecycle management of design and prototyping

The HUB-CI model is investigated in a telerobotic system in a client/server network to manage the lifecycle of engineering design and prototyping. The purpose of this platform is to support collaborative engineering design and proof of concept to enhance distributed team collaboration and resource utilization. The suggested platform is exemplified in two collaboration support tools and a physical prototyping platform. Structured Co-Insight Management is developed to support innovative idea exchanges and the consensus decision-making during the design process. Conflict/error detection management helps preventing conflicts and errors during the lifecycle of design and development. Physical collaboration over the network occurs when a team controls the telerobot operation during prototyping and testing in design cycles. A pilot system is implemented with a group project for the design of an electronic circuit (including both hardware and software designs). The functional assessment method is used to compare this platform to other collaborative design tools. The system presented offers unique qualitative advantages as an integrated collaboration support system.     

基于远程沉浸的协同式虚拟学习环境模型研究

针对现有虚拟学习环境沉浸感不强,分布式交互能力差的不足,提出了一个远程沉浸基础上的协同虚拟学习环境模型,给出了系统实施的关键技术.该模型以网格为中间件平台,融合分布式、协同式思想.模型采用集中分布式网络架构,通过WEB服务标准开发资源管理和异地同步通信程序,把不同地理位置上分布的虚拟学习子系统通过网格平台整合到一起,为不同地域、不同机构提供学习和合作环境.     

生物启发的无线传感执行网络协同方法

本文针对无线传感执行网络(wireless sensor and actor network,WSAN),在昆虫生物种群协作机理的启发下,提出了一种WSAN协同方法,以改善网络传输可靠性、节能与执行效率.首先,针对传感器节点与执行器节点之间的协作,提出以信息传递能耗和剩余能量衡量中继节点选择概率的效能协同机制,以及包含区域中继、影响因子和学习因子3个保障单元的组织协同机制.进而,针对执行器--执行器间的协作,引入学习因子作为组织协同机制中的一个保障单元.最后,给出了算法执行的流程,并通过仿真验证了方法的优越性.仿真结果表明,采用本文提出的协同机制,不但优化了WSAN信息传递路径,而且在执行器节点间协作中选择优势节点参与信息处理和决策,降低了网络能耗,同时提高了网络执行效率.     

混合型网格上基于Access Grid的协同可视化平台

近些年来,AccessGrid(AG)发展得十分迅速,它已经成为人们进行高级合作、组与组之间会议、教学和研究等的最流行工具之一。论文首先介绍了AG的体系结构及所涉及的各种关键技术,然后详细描述了如何在作者所搭建的一个基于GlobusToolkit(GT)和SunGridEngine(SGE)的Cluster网格环境上借助AccessGrid来搭建一个协同可视化的平台。     

一种基于网络属性的信息服务机制的设计

网格技术为地理上广泛分布的资源的共享和协作提供了很大的便利,信息服务是其重要组成部分,而信息服务的性能属性直接影响整个网格平台的服务质量.本文设计了一种基于网络属性的新的信息服务机制,该机制将IP属性与网络的带宽和链路的传输延迟时间相联系,将每一用户任务调度至最合理的资源上执行,使任务向资源的总提交时间最短,从而优化了资源的分配调度过程,提高了网格性能.     

Supporting process design for e-business via an integrated process repository

Business process design is an integral part of e-business engineering. Given that e-business models usually involve a wide range of business processes across different business functions with complex activities, events, and documents, process design for e-business is a very challenging task. Although various process reference models (PRMs) have been developed to provide guidelines for process design, research on leveraging multiple PRMs to support process design for e-business has been scant. In this paper, we demonstrate that the diverse process design requirements in e-business are best satisfied by utilizing multiple PRMs via a case study. Then, we propose a collaborative approach grounded in knowledge management theory to integrating multiple process reference models to better support process design in e-business. We equip the integrated process repository with a set of novel features based on Web 2.0 technologies to enhance its utility, efficiency, and quality for process design support. A prototype system is developed and user experiments are conducted to evaluate the system.     

Multi-Grid, Multi-User Workflows in the P-GRADE Grid Portal

Computational Grids connect resources and users in a complex way in order to deliver nontrivial qualities of services. According to the current trend various communities build their own Grids and due to the lack of generally accepted standards these Grids are usually not interoperable. As a result, large scale sharing of resources is prevented by the isolation of Grid systems. Similarly, people are isolated, because the collaborative work of Grid users is not supported by current environments. Each user accesses Grids as an individual person without having the possibility of organizing teams that could overcome the difficulties of application development and execution more easily. The paper describes a new workflow-oriented portal concept that solves both problems. It enables the interoperability of various Grids during the execution of workflow applications, and supports users to develop and run their Grid workflows in a collaborative way. The paper also introduces a classification model that can be used to identify workflow-oriented Grid portals based on two general features: Ability to access multiple Grids, and support for collaborative problem solving. Using the approach the different potential portal types are introduced, their unique features are discussed and the portals and Problem Solving Environments (PSE) of our days are classified. The P-GRADE Portal as a Globus-based implementation for the classification model is also presented. The work described in this paper is supported by the Hungarian Grid project (IHM 4671/1/2003), by the Hungarian OTKA project (No. T042459) and a collaboration project with the University of Reading.     

应用云计算架构六螺旋协同创新平台

为了“产、学、研”更好、更快的协同创新,以云计算、三螺旋和协同创新为理论基础,提出应用云计算技术架构六螺旋协同创新平台的设想,并对协同创新平台的五层体系结构和部分功能模块进行了详细设计。此平台能整合各种科技资源、人力资源和服务资源,还能使“政、企、校、研、中、金”六螺旋可以在自主式、交互式的环境中获取最新的信息、需求和供给,实现跨部门合作、跨学科合作、协同创新。对于稳固产学研交流合作渠道,促进高校、科研单位成果产业化,加快中小企业信息化建设和技术升级,实现协同创新等有重要意义。     

System construction for comprehensive industrial ecosystem oriented networked collaborative manufacturing platform (NCMP) based on three chains

In industrial manufacturing, with the deep integration and development of advanced digital technologies such as industrial big data, industrial Internet and industrial artificial intelligence with manufacturing industry, the manufacturing model is gradually developing and evolving from the direction of networking, platform, integration, collaboration and ecology. Therefore, for industrial manufacturing process, the research of construction of comprehensive industrial ecosystem oriented Networked Collaborative Manufacturing Platform (NCMP) system is great industrial application value by integrating network characteristics, platform elements, integrated mechanism, collaborative model and ecological format. In this paper, the system model of NCMP is constructed from four perspectives, including network perspective, collaborative manufacturing perspective, platform perspective, and industrial ecosystem perspective. Then, a system framework of NCMP based on three chains (manufacturing chain, value chain, and industrial chain) is proposed. Three collaborative subsystems of NCMP (vertical collaboration subsystem from multi perspective, horizontal collaboration subsystem from multi process, end to end collaboration subsystem from multi operator) are constructed. At last, a comprehensive system construction for NCMP in automobile industry is giving. The research results show that the most important elements to construct NCMP are purchasing department collaboration, demand department collaboration, design collaboration, data integration between enterprises and factories, etc.