基于3G的远程医疗服务系统设计

介绍了一种基于3G技术的远程医疗服务系统,采用SamSung公司的ARM S3C2440控制3G模块接入Inter-net,实现数据的远程无线高速传输功能。文中采用SIM公司的内嵌GPS模块的SIM5320作为通信模块,实现了集定位于一体的智能化医疗服务。本设计能广泛应用于无线数据采集和远程监控领域,具有很好的应用价值。     

英国领先的电信系统公司选用RADVISION的技术

SCOPIA互动视频平台与3G视频网关为不断发展的中小型企业市场提供增值服务技术支持。     

3G技术在图书馆的应用

3G时代的来临,给图书馆带来了机遇也迎来了挑战,在此前提下,图书馆移动信息服务这一全新图书馆服务理念的提出,就成为了当代数字图书馆发展的方向。通过介绍3G技术的基本理念,分析3G技术与图书馆的结合及应用。     

NTT DoCoMo完善3G产业链

早在1999年,N T TD o C o M o就在日本市场创立了一种风靡全国的“i-m o d e”通信服务,通过该项服务,NTTDoCoMo的用户可以浏览7400个网站。可以说,正是“i-mode”创造了移动通信文化,该项服务为此后NTTDoCoMo推广3G服务立下了奇功。从2001年开始,N T TD o C o M o在全球市场第一个推出基于W C D M A的3G网络,一开始,NTTDoCoMo充满信心,宣布要在2002年3月实现15万用户的目标,但事实上该目标直到2002年年底才实现。这之后用户的增长速度也不甚理想,到2003年7月,NTTDoCoMo的3G用户只仅有65.78万。面对困境,NTTDoCoMo迅速…     

3G计费之服务域采集子系统设计

介绍3G服务域计费网络的组成和话单采集方式,根据3G计费的特点研究服务域采集所得话单,抽象出多种话单数据类型,利用UML建模并设计出服务域采集器的基本功能类,使用RationalRose的正向和逆向工程进行工程实施。通过测试案例的设计确保系统的可靠和安全。整个流程体现软件工程思想在电信新业务开发中的重要意义。     

基于Web Services的3G服务接入平台系统的设计与实现

描述了可以用于一般服务接入平台的设计方案,并提出了组合服务的处理方式,主要包括平台内组合服务和平台外组合服务两种方式.针对3G的特点,将服务接入平台扩充为3G服务接入平台,并提出了网络架构和实现框架.最后给出一个在3G平台上实现组合服务的应用实例.     

基于3G技术的图书馆信息服务系统

在对3G技术进行概述的基础上,分析了手机图书馆的内涵来源于3G技术在手机中的应用,探讨了手机图书馆信息服务系统的构建基础是读者对移动信息服务的需求,构建依据是3G技术,系统总体设计方案包括:WEB网站设计、服务功能的设计与实现、关键技术选择等因素.指出了手机图书馆信息服务系统的未来要依托于3G技术的发展.     

3G计费之服务域采集子系统设计

介绍3G服务域计费网络的组成和话单采集方式,根据3G计费的特点研究服务域采集所得话单,抽象出多种话单数据类型,利用UML建模并设计出服务域采集器的基本功能类,使用Rational Rose的正向和逆向工程进行工程实施.通过测试案例的设计确保系统的可靠和安全.整个流程体现软件工程思想在电信新业务开发中的重要意义.     

信宏业:智慧旅游是智慧城市最好的展示平台

<正>国家旅游局信息中心副主任信宏业7月25日在2013年3G与宽带服务重点行业应用发展大会致辞时表示,如今旅游业要想服务好亿万游客,绕不开3G,更绕不开宽带,说到底绕不开智慧旅游。信宏业说,旅游领域政府提供的服务分三大块,包括为游客服务、为市场服务、为企业服务。做好服务是政府转型之后的重要方向,旅游行业主管部门没有那么多审批权和行政权限,行业也不需要那么多行政权限,应做和能做的就是提供好     

为3G而准备--2004年第2届中国移动运营商业务及服务年度国际论坛侧记

中国电信业3G牌照发放的悬念、3G标准应用的谜团。不仅对3G产业链上的所有环节．而且对国内外资本市场和社会公众都产生着强烈的“眼球”效应。在这种形势下。2004年第2届中国移动运营商业务及服务年度国际论坛于2004年9月22日在北京召开。论坛围绕着一系列专题而展开：如何扩大中国移动多媒体服务及应用市场以及如何创造新的市场：中国移动数据业务市场的未来走向；运营商的策略：新兴的宽带无线接入技术和移动运营商的机遇；减少移动数据新服务和新应用的成本和上市时间：开发崭新的通信消费市场应用。增加移动服务的收入；开拓移动电话多媒体功能；将移动性带人中国企业．提高生产率和绩效等等。     

Multi-mode interaction middleware for software services

Due to the independency, variability, and tailorability of software service in the open environment, the research of middleware which supports software services multi-mode interaction is thus of great importance. In this paper, an agent-based multi-mode interaction middleware model and its supporting system for software services were proposed. This model includes an interaction feature decomposition and configuration model to enable interaction programming, an agent-based middleware model, and a programmable coordination media based on reflection technology. The decomposition and configuration model for interaction features can assist programmers in interaction programming by analyzing and synthesizing interaction features. The agent-based middleware model provides a runtime framework for service multi-mode interaction. The programmable coordination media is able to effectively support software service coordination based on multimode interaction. To verify feasibility and efficiency of the above method, the design, implementation and performance analysis of Artemis-M3C, a multi-mode interaction middleware for software services, were introduced. The result shows that the above method is feasible and that the Artemis-M3C system is practical and effective in multi-mode interaction.     

基于3G语音服务系统的开发研究

3G业务已从一个前卫概念逐渐向实际应用转变,传统的语音增值业务技术却跟不上市场需求的发展。文章首先进行了语音增值业务在3G技术发展下的市场分析,然后提出了适用于中小型企业语音服务系统的模型,对系统开发实现,语音增值业务的推广具有现实实践意义。     

基于QoS的组合服务发现与选择研究*

分析了服务间的组合语义和QoS语义,研究了组合服务的发现与选择过程,并提出了高性价比的服务推荐原则。在组合服务的描述中借鉴了进程代数的思想,对顺序组合、选择组合和并发组合等语义进行了刻画,这些语义是服务组合的纽带。在服务发现的过程中,阐释了exact、plugin、subsume、overlap和fail匹配,两个服务的匹配度越高表示它们在语义上越相似;在服务选择的过程中,依据服务的性价比进行选择推荐,将性价比最高的服务推荐给用户,让用户获得满意的服务。该原则在有偿服务环境中对普通用户特别适用。     

Information Technology Investments: Characteristics, Choices, Market Risk and Value

The decisions confronting information technology (IT) managers have changed a great deal since the early 1970s. The key decisions three decades ago were related to the management of application development projects and operations centers. Today, the key decisions are quite different. What level of service should the firm provide end-users? Should IT services, development projects and the ownership and management of operations centers be outsourced? IT investments attempt to satisfy specific needs. Because of environmental differences and differences in the cost structure and benefits of alternative ways in which these needs can be met, the answers to these questions may differ across firms. Modern financial analysis can provide insights to help managers deal with many of the problems they currently face. We use modern financial theory to show how the value of IT investments can be affected by some of the choices made by managers. We show how the market risk of demand and the market risk of costs affect the market risk and value of IT investments. We consider three types of investment decisions: outsourcing versus in-house services; investments in interorganizational systems; and determining the optimal level of IT services that should be provided. Our analysis indicates that: (1) as the market risk of demand for operations decreases, firms are less likely to outsource operations; (2) the value of an investment in an interorganizational system increases as the market risk of costs increases; and (3) the optimal level of user service is inversely related to service demand risk and is directly related to the market risk of service costs.     

第三方服务培训市场现状浅析

我国的第三方服务发展速度迅猛,但是第三方服务的质量仍需不断提高,为此大力加强第三方服务业的培训就显得尤为迫切。本文通过对我国第三方服务产业中的测试、监理、评估、认证四个方面的培训历史、国家政策、培训机构、人员结构、竞争态势等的简单分析,使我们对我国第三方服务的培训市场有一个概要的了解,从而为我们第三方培训业务的开展提供更好的市场参考,以促进我国第三方服务产业的发展,为我国各个产业的发展与升级提供动力与支持。     

支持多类终端与服务定制的SaaS软件服务架构

由软件即服务(SaaS)模式中软件服务的概念与特点分析,可知现有的面向服务架构(SOA)不能完全支持软件服务的实现。此外,为了拓展软件服务的应用范围,实现多样化的服务,SaaS模式的软件服务必然要满足用户定制服务的需求,以及对多类用户终端的支持。通过对SOA的扩展,在其中引入了软件服务终端、软件服务端口、软件服务注册等模块,提出了一种支持多类终端与服务定制的SaaS软件服务架构,给出了该架构的结构与工作流程,并通过实验证明了该架构可以实现SaaS模式的软件服务,而且能够实现对上述功能需求的支持。     

Adoption of new online services in the presence of network externalities and complementarities

A typical online user utilizes multiple services in the same service category concurrently due to the fact that many online service markets are characterized by the coexistence of multiple services offering complementary features. Along with an inherent network externality feature, this complementary nature among competing online services complicates predictions of adoption patterns in these markets. This paper extends the adoption function model of Arthur [W.B. Arthur, Competing technologies, increasing returns, and lock-in by historical events, The Economic Journal 99 (1989) 116–131] and applies it to the online service market in an attempt to explain various cases of adoption behavior. The proposed model predicts that there exists a first-mover’s advantage in this market. Specifically, when network externality is large enough, the follower is confined to a low market share, even though it provides the same level of service as that provided by the leader. However, this first-mover’s advantage can be overcome in cases where perturbations are caused by the heterogeneity of consumers or by service value uncertainty. In addition, a two-step punctuated equilibrium may exist: under specific conditions, market share distribution may be stable for a while at certain levels and then move into actual equilibrium.     

Inter-domain service management of broadband virtual private networks

The emergence of an open market for telecommunication services provides a wide range of opportunities for the provision of value-added services by providers other than public network operators. One service already available today is a Virtual Private Network (VPN) that provides dispersed corporate sites with wide-area data communication capabilities using public network services. The introduction of Broadband ISDN allows for the provision of VPN services in a more integrated fashion. However, any effective VPN service must be able to deal with the technological and organizational heterogeneities that are present when providing a high level of service functionality over an arbitrary number of administrative and technological domains. This paper presents a management service for a VPN service that addresses some multi-domain and network heterogeneity issues. It outlines how a design based on the ITU-T's Telecommunications Management Network (TMN) Recommendation was developed and how working prototypes were implemented over real broadband networks.     

一种基于体系结构的Web服务组合描述方法

Web服务组合能够快速开发复杂的Web服务,以促进Web服务的增值。在分析并比较现有的Web服务组合方法的基础上,提出了一种形式化和工业化方法相结合的Web服务组合描述方法。针对Web服务及其组合的特点,研究了基于体系结构的Web服务组合描述方法,采用扩展的XYZ／ADL定义Web服务及描述其交互的连接件,最后结合一个实例描述Web服务组合的工作方式。     

全矿井综合自动化系统服务级别协议的探究

针对目前全矿井综合自动化系统服务级别混乱和服务周期长的问题,提出采用服务级别协议的方式来分类分级管理售中和售后服务的方案,从安装调试类服务、系统推广类服务、定制升级类服务、技术支持服务和日常运营服务5个方面详细介绍了服务级别协议的分类管理及内容。服务级别协议将IT服务管理的思想贯彻到了全矿井综合自动化系统的合同签订及实施过程中,对合同的实施周期、项目的验收和合同回款都将起到显著的作用。