面向服务的企业架构

定义了面向服务的企业架构、业务过程和活动类型,分析了企业架构内涵的演化、概念框架和服务视角,并在传统企业建模、IT规划和企业架构的基础上提出了面向服务企业架构及其规划过程,为分析面向服务环境下企业的业务、IT及其一致性提供了公共的理解和交流基础,有助于企业实时监控IT架构运营状况,进而预测、评估和优化企业业务过程性能,实现企业间的业务过程协作建模与执行.     

面向服务架构的信息安全应用探析

随着信息技术的不断发展,信息化建设复杂程度越高,为了增强软件系统快速构建能力与业务变化能力,进而实现用户原有IT资源与跨平台数据共享,面向服务架构(SOA)孕育而生。SOA作为信息技术转型而成的一种集成方式,具有重用性、互操作性,同时在粗粒度、松散耦合等方面亦存在一定优势,已成为当前企业应用集成的关键方式。SOA模式能促使跨越企业实现边界业务信息共享与系统自动化,但基于Web服务调用与开放数据访问形势下,易给商业运作带来的安全风险。该文主要从SOA模式特征角度出发,基于WS-security面向服务安全框架前提下,提出了SOA安全框架模型,以期实现服务层、网络层安全。     

新型经济下高职信息技术类专业的定位

本文根据信息技术在当前经济形势下的应用状况,分析了信息化无所不在而且仍在快速推进,以及对信息服务为首要诉求的IT服务的需求日增的种种现象。提出现代服务业依靠IT技术才能产生以及信息技术要成为服务于服务业的学科的观点。同时指出高校对IT人才的教育需要随之而重新定位和改变课程。     

我国IT服务行业的发展前景与人才储备需求分析

随着经济全球化发展趋势加快和市场竞争的加剧,如何专注自己的核心业务已经成为企业最重要的生存法则之一.2000年至今,全球IT服务外包业务高速增长带动了全球IT服务外包产业的快速发展,IT服务企业雨后春笋一般纷纷成长起来,但IT服务企业数量和规模还远远不够,IT服务人才短缺和结构的不合理严重制约了我国IT服务外包产业的快速发展.随着中国IT技术市场与国际标准的全面接轨,IT服务人才的培养和储备已经成为我国与各国IT服务行业之间竞争的主要砝码.本文分析了我国IT服务行业的发展前景,以及对IT服务人才的潜在需求,以帮助IT服务企业做好人力资源规划,同时也为高等学校培养IT服务人才提供参考依据.     

数据中心运维服务管理体系的优化分析

随着信息技术在各公司内的深入应用,公司业务发展与日常经营活动对IT的依赖程度越来越高,数据中心成了企业发展中必不可缺的一个重要组成部分,在技术的推动下,当前的数据中心开始朝着智能化、全局化、流程化的模式发展,对于数据中心的运维服务管理体系也提出了更高要求.本文分析了信息技术服务与数据中心的相关概念,探讨数据中心运维服务...     

“丈量”IT服务 共筑行业标准

任何一个行业,标准的制定都预示着其走向成熟发展的步伐在不断加快,信息技术服务业也不例外。一方面,从培育内需市场、提高用户对IT服务价值的认同、引导和规范产业发展的角度来看,只有标准先行,才能加快企业转型升级,避免＂先乱后治＂的被动局面。另一方面,随着产业的不断发展,信息技术服务门类不断增多,商业模式、服务模式不断创新,企业加速转型,这些又对组织开展信息技术服务标准化工作提出了更高的要求。     

面向服务架构的异构系统集成模型

针对企业现有信息系统不能适应新业务需求这一现状,提出采用面向服务架构(SOA)思想对企业现有异构系统进行集成,达到在保持现有IT基础设施前提下,满足企业新的动态业务需求的目的.以某煤矿企业信息系统建设为案例,重点分析了企业实施SOA架构的系统模型建立过程及关键技术实现流程,为企业信息系统改造提供了一种新的解决方案.     

基于SOA的企业分布式系统的研究与应用

分析了现代企业IT系统的特点,指出需要引进一种更先进的系统架构以适应企业的业务重组和快速应变.在分析面向服务架构(SOA)的特点后,提出了面向服务架构的企业分布式系统结构,并使用该结构对一个J2EE平台的软件系统提出改进的方案.     

随需应变的软件过程改进

信息技术发展至今,IT企业面临的一大挑战是如何才能迅速调整应用软件,以便紧跟着企业业务的变化,在软件开发过程中做到随需应变,提高开发应用的效率。简单介绍了面向流程管理架构的技术和面向服务的架构技术,随需应变的主要特征,以及软件在过程改进中如何尽量地实现随需应变,最终得出一个软件的企业模型。     

基于ITIL的IT运维服务管理探析

随着企业信息化建设的日趋完善,如何管理、控制和维护企业日益复杂的信息系统,确保已建成信息系统的稳定运行,充分发挥已有IT资源的使用效率,为企业的业务发展提供有力的支撑和保障,已成为企业在信息化发展进程中开始重点关注的问题。本文从IT服务支持的管理流程以及IT服务提供的管理流程这两个方面对IT运维服务管理进行了探析。     

On the predictive performance of queueing network models for large-scale distributed transaction processing systems

Automated business processes running on distributed transaction processing (DTP) systems characterize the IT backbone of services industries. New web services standards such as BPEL have increased the importance of DTP systems in business practice. IT departments are forced to meet pre-defined quality-of-service metrics, therefore performance prediction is essential. Unfortunately, the complexity of multiple interacting services running on multiple hardware resources as well as the volatility in the demand for these services can make performance analysis extremely difficult. While business process automation has been a dominant topic in the recent years, surprisingly little has been published on performance modelling of large-scale DTP systems. In this paper, we will describe these systems with respect to the workloads and technical features, and compare the predictive accuracy of different types of queueing models and discrete event simulations experimentally. The experiments are based on two real-world DTP systems and respective data sets of a telecom company. Overall, we found that while the results for average utilization scenarios are quite similar, the effort to implement and run analytic solutions is much lower. As long as standard distributional assumptions of analytical models hold, they provide a reliable and fast methodology to explore different demand mix scenarios even for large-scale systems. The difficulty to estimate service and arrival time parameters and demand mix for the respective queueing network models can largely be reduced with appropriate tooling. Often, this information is missing in IT departments. Also, complex event conditions and error handling in DTP systems can make the analysis difficult. For many DTP applications, however, performance modelling could provide valuable decision support for service level management.     

An analysis of the driving forces for Web services adoption

Web services are supported by major IT vendors and have been adopted by some enterprises in various applications. However, due to the hype surrounding Web services, information technology (IT) personnel and business managers often have difficulty assessing the potential uses, impacts, and benefits of Web services. Based on literature review and technical information, as well as field and Web-based case studies, we have developed a framework for analyzing the driving forces for Web services adoption. The framework and detailed benefits analysis model can be used by IT and business strategy planners to identify technical options and business opportunities, as well as to formulate Web services implementation strategies.     

Process: Learning,Working and Innovation

Worldwide the environment in which IT initiatives are deployed is changing. Increasingly, IT investments are being made to produce market outcomes as well as internal operating efficiencies. Learning about the linkage between the IT investments and business value is a critical challenge in the service sector for industries such as financial services, transportation and retailing where IT is endemic to the products and services delivered to customers [1]. Using a case study in a large North American insurance company and recent theory [2] as our guide, we identify ways in which Information Systems (IS) organizations can become more innovative by using learning as the bridge between working and innovation.     

Relooking at services science and services innovation

In lots of countries, service economy has become the dominant economy. Modern services industries require talents skillful at multidiscipline subjects including IT services, business models, management skills, psychology, etc. There is the rise of services science, service-oriented computing, and services computing. The multidiscipline features bring new challenges for services science. In this paper, we go beyond the traditional view of services and propose a three-layer framework for services science and services innovation. The framework covers service needs, service competencies, and service resources. We believe that these are the common building blocks and foundations for modern services industries. We use Amazon as an example to show the relevant of the framework for analyzing patterns of services innovation. We also use this framework to derive a set of service curricula for training talents for modern services.

基于SaaS的IT资产管理系统研究

对SaaS服务模式及IT资产管理的现状进行了一定的研究,然后将SaaS应用模式结合IT资产管理得到基于SaaS的IT资产管理系统。对系统架构、功能、安全方案和商业模式进行探讨,提出了实现SaaS模式下的IT资产管理系统的系统方案,该方案的目标是实现SaaS第三级成熟度模型,考虑用基于Rabin密码体制的一次性口令身份认证方案,并且部署在软件服务平台上。     

An information system architecture for build- and engineer-to-order production of application services

In manufacturing, substantial efficiency gains have been achieved through industrialization. Key concepts of industrialization include standardization, automation, and modularization. Transferring these to IT service production promises increased efficiency. ERP systems apply such concepts and have been an integrating tool for making production for manufacturers more efficient. However, previous research has considered ERP systems for IT service providers either very broadly or only from a business or technical perspective. This article investigates how to apply the ERP system concept comprehensively to a specific type of IT service provider. To this end, application services are prescribed as being composed of three types of configuration models. This helps to achieve a composition of (IT) application services that is comparable to physical parts, and it further supports their management and automated production within an ERP system. An information system architecture with the ERP system at its core is presented. It supports application service production. All relevant service lifecycle phases are considered and a consistent domain model is provided that connects business and technical layer entities. Targeted companies can improve their application service production in terms of quality and efficiency by leveraging this novel automation- and model-based approach.     

重构3C服务的O2O模式探析

IT服务成本不断上升及新服务商业模式的出现,促使传统PC厂商在服务市场上不断地变革。首先介绍了3G市场的强势发展,然后分析了消费者对3C服务的需求以及3C服务市场的现状．最后介绍了联想乐享3G平台及其所提供的服务。     

Model-based services convergence and multi-clouds integration

With the development of cloud computing, IT users (individuals, enterprises and even public services providers) are transferring their jobs or businesses to public online services provided by professional information service companies. These information service companies provide applications as public resources to support the business operation of their customers. However, no cloud computing service vendor (CCSV) can satisfy the full functional information system requirements of its customers. As a result, its customers often have to simultaneously use services distributed in different clouds and do some connectivity jobs manually. Services convergence and multi-clouds integration will lead to new business models and trigger new integration technologies that provide solutions to satisfy IT users’ complicated requirements. This paper firstly reviews the development of cloud computing from business and technical viewpoints and then discusses requirements and challenges of services convergence and multi-clouds integrations. Thirdly, a model based architecture of multi-clouds integration is provided. Business logic modelling for cross-organizational collaboration, service modelling and operation modelling methods with relative model mapping technology are discussed in detail. Some key enabling technologies are also developed. At last, case studies are presented to illustrate the implementation of the technologies developed in the paper.     

Structuring the Interaction Between it and Business Units: Prototypes for Service Delivery

Companies have introduced innovative organizational structures to deal with rapidity of change, the globalization of markets, and expectations for increased quality and customer service. During this process, many have discovered that the interaction between IT and business units is key to success. This article presents the results of a pilot study that examined the structure of this interaction in eight Fortune 500 manufacturing companies. It answers the questions: What prototypes describe the interaction between IT corporate business units? What outcomes are associated with the various prototypes? What are the implications of these models of structure for the effective delivery of IT services?