Communications aspects of intercontinental deployment of enterprisewide applications

Using telecommunication networks and shared databases, modern enterprises may deploy the applications that will hold the operations fabric of their enterprises together and improve their worldwide competitiveness. Enterprise-wide applications deployment is a complex systems integration project, even in cases of single-country deployment, because the computing platforms, databases, applications, and communications infrastructure have to be planned and deployed in concert with each other. When the regional and corporate headquarters are on different continents, network planners, data processing (DP) personnel, and executive management alike find themselves dealing with this multidiscipline problem complicated by multicontinental logistics. We consider a number of technical architecture options for the enterprise-wide applications deployment of intercontinental multisite operations and qualify them in terms of their feasibility, technical risks, capital and operation costs, and user satisfaction. We also address the spongy keyboard problem, a condition that may make centralized solutions unsuitable for intercontinental deployment. In choosing the technical architecture to support enterprise-wide applications, we consider the following options: centralized processing, autonomous processing with centralized batch consolidation, regionalized processing with ongoing centralized consolidation, and regionalized processing with global distributed consolidation     

基于J2EE构建多层分布式物资管理信息系统

分布式对象和WWW技术在构建分布式企业计算环境中发挥着越来越重要的作用。分布式对象可以从不同的平台获得封装的企业逻辑，而WWW技术则为终端用户提供了强大的信息集成和交互能力。J2EE应用基于网络技术为企业应用系统提供一个具有高度可移植性和兼容性的安全平台。本文从应用系统总体结构入手，首先描述了基于J2EE企业平台的多层分布式体系结构，然后结合某单位物资管理信息系统的功能及其结构设计，详细分析了该管理信息系统在J2EE平台上的实现过程。     

The Grid Enterprise — Structuring the Agile Business of the Future

Information technology (IT) spending remains depressed as organisations look to exploit their existing systems, squeezing out the last drops of benefit to bolster their financial cases. However, at some point the law of diminishing returns will cut in as infrastructure gets older and the needs of business agility stretch the bounds of existing systems. As a result, companies will start to look for the next wave of technology that will help them both upgrade their capacity and improve their agility. Many analysts have identified grid computing and Web Services as the core technologies to support this wave, variously describing it as ‘organic IT’ and the ‘real-time enterprise’. However, there is a broader convergence of both these two technologies with the techniques of business process management that appears to offer even greater benefit. This paper examines the drivers of organisational agility and the corresponding demands on a Web Services-based infrastructure. It identifies the shortfall in current Web Services solutions and highlights how a service-oriented architecture can overcome them. It extends this architecture to incorporate both business process management and grid computing and concludes by deriving a future form for the truly agile enterprise. This revised version was published online in July 2006 with corrections to the Cover Date.     

Thoughts on using scientific system engineering method todevelop quantum computer

As the traditional semiconductor complementary metal oxide semiconductor(CMOS) integrated circuit technology gradually approaches the limit of Moore’s Law, quantum computing, as a new system computing technology, with the potential for higher computing speed and lower power consumption, is getting more and more attention from governments and research institutions around the world. For instance, the United States(US) government is adopting a bunch of bills to deploy new quantum information proces...     

Workflow-enabled distributed component-based information architecture for digital medical imaging enterprises

Few information systems today offer a flexible means to define and manage the automated part of radiology processes, which provide clinical imaging services for the entire healthcare organization. Even fewer of them provide a coherent architecture that can easily cope with heterogeneity and inevitable local adaptation of applications and can integrate clinical and administrative information to aid better clinical, operational, and business decisions. We describe an innovative enterprise architecture of image information management systems to fill the needs. Such a system is based on the interplay of production workflow management, distributed object computing, Java and Web techniques, and in-depth domain knowledge in radiology operations. Our design adapts the approach of "4+1" architectural view. In this new architecture, PACS and RIS become one while the user interaction can be automated by customized workflow process. Clinical service applications are implemented as active components. They can be reasonably substituted by applications of local adaptations and can be multiplied for fault tolerance and load balancing. Furthermore, the workflow-enabled digital radiology system would provide powerful query and statistical functions for managing resources and improving productivity. This paper will potentially lead to a new direction of image information management. We illustrate the innovative design with examples taken from an implemented system.     

传统IT企业向云业务转型的决策支持系统设计

在分析业界云计算技术背景及产业链环境的基础上,提出一种传统IT企业向云计算业务转型的智能决策支持系统的设计方法;阐述了该智能决策支持系统的架构,详细介绍了该系统中模型库管理系统、知识库管理系统、数据库管理系统以及人机交互综合系统的关键点;系统充分利用了IT企业丰富的技术积累、业务积累、行业优势及实施经验,探索了IT企业在由传统业务模式转型到云计算业务模式的机会及突破口.     

浦东新区社区云的设计与实现

云计算被认为是继个人计算机和互联网之后电子信息技术领域的下一次重大革命.本文基于云计算理论,整合分布计算、网格计算与虚拟化理论,从系统架构层介绍浦东新区社区卫生服务中心信息系统.浦东新区社区卫生服务中心信息系统是以浦东新区社区卫生服务中心信息状态为基础,依托社区卫生信息专网,整合社区资源.突破了原有架构模式,解决社区信息化的各种压力,包括:资源分配不均的压力,数据共享的压力,系统扩展性的压力,系统应对变化的压力,维护的压力等.改变以往以应用为核心的资源配置模式,转向以资源为核心的资源分配模式,保证业务对资源需求的完整性.结合当前的热点技术,突破传统模式,为社区卫生服务中心信息化改造提供新的思路.     

Broadband networks and services: architecture and control

Broadband networks to support a diverse combination of media and services present two interrelated challenges to the designers: how to devise the proper network architectures to efficiently deliver information, and how to realize the control and software infrastructure for end-to-end support of broadband applications. The new networks and applications that represent the future of interactive digital broadband are not driven by technology alone. We should recognize that the true foundation of the future information networking business involves the uses and benefits that it produces. The applications that are driving the information age are numerous, coming from the areas of entertainment, enterprise systems, telecommunications, education, health, etc. The use of client-server distributed object computing technologies is at the foundation of all the software systems that have been designed and implemented. There are still many Issues to he resolved in the application of this software technology, but it is clear that we must rely on distributed software designs to support the features of interactive broadband services. Concerns over the ability to manage complexity and scalability in these large distributed software systems are a common thread and an indication that the technology still needs to mature     

基于云计算的智能交通系统的研究

智能交通系统(ITS)在我国的发展处于起步阶段,面临着诸多问题:海量数据不能有效整合、偏远地区设备落后、各省各部门各自为战等。而云计算技术的发展将为智能交通系统的发展带来新的发展空间;两者的结合必将是未来的发展趋势。本文通过研究云计算技术在智能交通系统中的应用,提出了基于云计算技术的ITS平台(智能交通云),解决了交通信息共享、设备落后等问题。     

云计算概念、模型和关键技术

云计算指IP技术架构下的网络计算,其本质是ICT业务的一种新的应用方式。绝大数企业和运营商的数据中心的改造将是云计算未来发展的主要任务：使云计算技术更为普遍和更为广泛地为绝大部分企业、机构、团体和运营商服务。云计算技术将不仅提供传统意义的IT资源和应用服务,而且将支持包括IT、通信、电视、移动和物联等一切互联网技术融合后的资源使用和业务应用。云计算发展的关键技术主要有统一交换构架、统一虚拟化和统一计算系统,云计算发展的战略推手将是组建开放产业联盟和推动开放技术标准。     

基于J2EE和构件技术的应用软件集成平台

通过分析企业对业务集成的需求,提出了企业应用软件集成平台的体系结构,并提出了一个用软件构件技术集成平台的解决方案。在此基础上利用J2EE框架的相关技术构建了一个分布式企业内部部门级的信息平台模型,该模型具有分布式组建结构并支持基于Web的客户端技术和基于远程应用程序的客户端技术。     

运营商私有云架构设计及IT系统整合策略浅析

随着技术的日趋成熟,云计算已成为未来移动互联网发展的基础和核心,并将逐步替代传统IT技术,是运营商降低IT建设和维护成本的重要手段。通过探讨运营商传统IT支撑系统和业务平台建设模式存在的问题,深入分析和研究了运营商私有云架构设计方案,并给出了IT支撑系统和业务平台基于私有云整合的建设思路。     

广播电视新闻融合媒体平台规划设计

青海广播电视台为打造一个支持“全媒体、全业务、全流程、全覆盖、全扩展”适应未来发展需要的一体化平台.拟将新闻中心改造为高清采编基础上基于云计算技术的全媒体融合新闻平台.从系统规划、整体架构、关键技术等方面介绍了系统总体规划,从资源层、业务层、管理层三个方面分析了系统支撑云平台核心点设计.     

基于多租户架构的PaaS构建剖析

云计算平台不仅是云产品实现的基础,而且是体现云计算运营思路内涵的表达形式。以Salesforce公司的平台即服务（PaaS）平台为例,对基于多租户架构模型的PaaS平台的各个部分进行了详细剖析,展示了该平台内在的关键支撑技术,总结了技术选用的原则。Salesforce公司的PaaS平台整体架构分为基础物理设施资源和Force．com平台。Force．corn平台是整体架构的核心部件,分为网关和虚拟服务器群（POD）。最后指出云产品平台的构建要选用适合企业自身发展的技术,并与公司经营理念相适应,以推动企业云服务经营业务的发展。     

云计算分布式缓存技术及其在物联网中的应用

物联网是信息技术发展到一定阶段的产物,而云计算平台是物联网应用的基础。文章从当前云计算应用所面临的问题和缺陷出发,介绍了云计算分布式缓存的部署方式、功能架构及关键技术,并说明了分布式缓存高性能、高吞吐、高可靠性、高扩展性等优势和特性。文章解决了物联网应用普遍面临的数据可靠性、大容量内存共享、多模块数据一致保障、线性扩容等难题,为物联网平台云化架构的底层支撑奠定了基础。     

基于MySQL的云数据库分析与设计初探

云计算是在互联网的基础上建立的一种计算方式.通过该方式,软硬件的共享资源和信息都会在对应的设备或是计算机中被提供.而云计算中最主要的商业模式是PaaS.其中DaaS是PaaS平台中的基础功能,它可以利用MySQL数据库技术,进行系统架构和部署设计,以此来实现云数据库的服务.     

企业战略驱动的QoS属性相关Web 服务选择与部署方法

将业务与面向服务的体系(SOA)结合受到企业决策者越来越高的重视,这种结合利用信息技术优势提高了企业的业务性能。SOA具有可重用和松耦合的技术特点,可以很好地保证业务的敏捷性。然而,当面对如何选择和部署Web服务这样的技术问题时,企业的战略目标经常被忽略。为了解决该问题,同时考虑到服务QoS属性的相关性可以更准确地反映属性的重要程度,该文提出了一种改进的层次分析法来综合技术和战略方面的决策,帮助企业决策者更好地使用Web 服务实现企业战略目标。     

Assessing Level of Ubiquitous Computing Services for Ubiquitous Business Design

We are entering into a new era of enterprise computing that is characterized by an emphasis on broadband convergence, knowledge sharing, and calm services. Some people refer to this as the "ubiquitous network" business model because its focus is on a high degree of connectivity between a company and its customers, suppliers, and channel partners. Moreover, immediate access to ideas, goods, and services will be of greater value than the traditional model of permanent and ponderous possession. This paper illustrates how ubiquitous computing technology can be combined with legacy computer-based information systems, along with thoughts on relevant issues of ubiquitous commerce. We also propose a model for how to assess levels of ubiquitous computing services.     

The emerging role of the Web for enterprise applications and ASPs

Web technologies were initially used for Web publishing and advertising in enterprises. However, over the years Web technologies have merged with other distributed computing technologies and assumed a vital role in satisfying enterprise business needs. This paper takes a systematic and practical look at Web evolution from static HTML to Web-enabled business components that are at the foundation of currently popular Web services (WS). In particular, WS is a result of convergence of the Web with distributed object technologies and is positioned to play a central role in building and integrating enterprise applications in the future. However, the impact of WS is not limited to enterprise boundaries - business-to-business trade and outsourcing through application service providers can also be profoundly impacted. This paper highlights the key aspects of these developments because they will drive the requirements to be satisfied by the current and future Internet technologies. The possible deterrents to these developments and approaches to address these deterrents are also discussed.     

Operational support systems for the future

The information services market, emerging from the convergence of telecommunications, information technology, entertainment and other industries, poses serious challenges for operational support systems. Historical ways of understanding and delivering operational support functions will no longer work. Business management functions will increasingly be a major commercial differentiator in the new market. This paper argues that these functions need to be re-defined as business services so that a market can develop in them. It explains a technical approach to defining and building these business services, which is being researched at BT Laboratories, and which uses configurable business objects and intelligent agents. This approach offers the possibility of managing the complexity that the explosion of new information services will bring, and also of opening up exciting new business possibilities.