基于SOA架构的校园信息化平台的设计和实现

如何利用原有系统的资源,建立开放灵活、低代价的系统已经成为高校信息化建设的关键,面向服务的体系结构（SOA）为解决分布式环境中软件重用,扩展和提高软件开发效率提供了解决方案。文章介绍了SOA的概念和基本结构,针对SOA的实现手段之一Web服务,给出了某高校应用Web服务实现校园信息化平台的模型及系统的总体框架,并分析了实现该平台的一些关键技术。     

基于Web Services Binding和Java Component的SCA规范构建SOA

如何充分利用原有系统的资源,建立开放灵活、低代价的系统已成为信息化建设的关键。面向服务的体系结构（SOA）为解决分布式环境中软件重用、扩展和提高软件开发效率提供了解决方案。WebServices是构建SOA的核心技术,服务是SOA的基本单元;采用基于Web service Binding与Java Component的SCA规范构建SOA,能自然有效地实现服务间的松散耦合。结合电信项目开发探讨了SOA的有关概念与技术,并给出了在国产Linux环境下基于Web service Binding和Java Component的SCA规范构建SOA的部分实现。     

基于SOA集成高校信息系统

面向服务的体系结构（SOA）是一种新兴的软件体系结构,文章介绍了SOA的概念和基本结构,针对SOA的实现手段之一Web Services,给出了某高校应用Web Services实现SOA集成的实例,是构建新一代高校集成的最佳方案。     

基于SOA的高校信息系统集成研究

研究了SOA的基本概念和体系结构,分析了将Web Service作为SOA实现技术的不足之处,阐明了SCA/SDO编程模型的优势,并针对高校信息化建设的现状,提出了基于SCA/SDO编程模型,对高校信息系统进行集成的SOA架构模型。     

校园网络应用系统集成的设计与探讨

本文针对各大高效信息化建设过程中出现的独立系统不相融合的问题,详细的分析了对高校应用系统进行集成的必要性,在此基础上提出基于Web服务的SOA架构设计方案,为高校应用系统的集成提供了解决措施,该方案以Web服务和SOA架构为信息集成的核心技术,可以集成高校现有的多种形式的信息系统。     

基于SOA的高校人事管理系统的研究

在面向服务体系结构SOA(Service-Oriented Architecture)理念的基础上,设计了基于SOA的高校人事管理系统的体系结构,实现业务层与数据层的多层复用.以业务流程为导向,在分析高校人事管理业务流程的基础上进行服务粒度的设计.最后对该人事系统的Web应用程序的实现进行分析,提出应用JSP和EJB工具,基于MVC模式的实现框架.     

基于SOA架构的校园网应用系统集成设计与分析

针对高校大规模的扩张,为了便于管理,其信息化建设逐年增大,因此在这个过程中出现的独立系统不相融合的问题,本文基于SOA架构对其进行整合。本文详细的分析了对高校应用系统进行集成的必要性,在此基础上提出基于Web服务的SOA架构设计方案,为高校应用系统的集成提供了解决措施,该方案以Web服务和SOA架构为信息集成的核心技术,可以集成高校现有的多种形式的信息系统。     

基于SOA的院务管理信息系统

如何充分利用原有系统的资源,建立开放灵活、低代价的系统已成为高校信息化建设的关键。面向服务的体系结构(SOA)是一种新兴的软件体系结构,为解决分布式环境中软件重用、扩展和提高软件开发效率提供了解决方案。     

一个基于SOA的大型分布式计算机辅助教学系统

传统的面向对象的软件开发方法所开发的应用系统通常与开发工具、宿主平台、操作系统紧密耦合,容易导致和形成所谓的“信息孤岛”。面向服务的体系结构（SOA）被认为是解决分布式环境中软件重用、互操作、提高软件开发效率的有效途径。本文以一个具体的计算机辅助教学管理系统—NWU-CMI为实例,研究了利用Web服务实现基于SOA的大型分布式软件系统的有效方法,同时,深入分析了采用SOA体系结构开发NWU-CMI系统的代码重用、系统结构、服务组装等关键实现技术。     

SOA架构在Web扩展服务的探讨

本文探讨了面向服务的体系结构(SOA)架构和Web服务,SOA可以基于Web服务,也可以将Web服务的使用从简单的客户端-服务器模型扩展成任意复杂的系统,对Web服务进行扩展.最后以一家金融业公司通过SOA简化借贷业务系统来说明SOA在Web扩展服务的应用.     

煤矿井下安全监控分站的设计及其仿真实现

为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.     

Call for Papers The 6^th International Conference on Grid and Cooperative Computing

Recent years have seen rapid advances in various grid-related technologies, middleware, and applications. The GCC conference has become one of the largest scientific events worldwide in grid and cooperative computing. The 6th international conference on grid and cooperative computing (GCC2007) Sponsored by China Computer Federation (CCF),Institute of Computing Technology, Chinese Academy of Sciences (ICT) and Xinjiang University ,and in Cooperation with IEEE Computer Soceity ,is to be held from August 16 to 18, 2007 in Urumchi, Xinjiang, China.     

View-based model-driven architecture for enhancing maintainability of data access services

In modern service-oriented architectures, database access is done by a special type of services, the so-called data access services (DAS). Though, particularly in data-intensive applications, using and developing DAS are very common today, the link between the DAS and their implementation, e.g. a layer of data access objects (DAOs) encapsulating the database queries, still is not sufficiently elaborated, yet. As a result, as the number of DAS grows, finding the desired DAS for reuse and/or associated documentation can become an impossible task. In this paper we focus on bridging this gap between the DAS and their implementation by presenting a view-based, model-driven data access architecture (VMDA) managing models of the DAS, DAOs and database queries in a queryable manner. Our models support tailored views of different stakeholders and are scalable with all types of DAS implementations. In this paper we show that our view-based and model driven architecture approach can enhance software development productivity and maintainability by improving DAS documentation. Moreover, our VMDA opens a wide range of applications such as evaluating DAS usage for DAS performance optimization. Furthermore, we provide tool support and illustrate the applicability of our VMDA in a large-scale case study. Finally, we quantitatively prove that our approach performs with acceptable response times.     

A pragmatic multi-method investigation of discrepant technological events: Coping,attributions, and ‘accidental’ learning

Discrepant technological events or situations that entail a problem, a misunderstanding or a difficulty with the Information Technology (IT) being employed, are common in the workplace, and can lead to frustration and avoidance behaviors. Little is known, however, about how individuals cope with these events. This paper examines these events by using a multi-method pragmatic approach informed by coping theory. The results of two studies – a critical incident study and an experiment – serve to build and test, respectively, a theoretical model that posits that individuals use a variety of strategies when dealing with these events: they experience negative emotions, make external attributions, and adopt engagement coping strategies directed at solving the event, eventually switching to a disengagement coping strategy when they feel they have no control over the situation. Furthermore, users’ efforts may result in ‘accidental’ learning as they try to overcome the discrepant IT events through engagement coping. The paper ends with a discussion of the results in light of existing literature, future opportunities for research, and implications for practice.     

The Distributed Time-Triggered Simulation Scheme: Core Principles and Supporting Execution Engine

Distributed real-time simulation is a young technology field but its practice is under increasing demands. In recent years the author and his collaborators have been establishing a new approach called the distributed time-triggered simulation (DTS) scheme which is conceptually simple and easy to use but widely applicable. The concept was initiated in the course of developing a new-generation object-oriented real-time programming scheme called the time-triggered message-triggered object (TMO) programming scheme. Some fundamental issues inherent in distributed real-time simulation that were learned during recent experimental studies are discussed along with some approaches for resolving the issues. An execution engine developed to support both the TMOs engaged in control computation and the TMOs engaged in DTS is also discussed along with its possible extensions that will enable significantly larger-scale DTSs.     

Software-Konfigurationsmanagement in großen Softwareprojekten

Zusammenfassung Mit zunehmender Größe der Softwaresysteme verschärfen sich die für die Software-Herstellung typischen Probleme: Beherrschen großer Objektmengen, Erhalten der Systemkonsistenz, Kontrolle der ständigen Änderungseinflüsse und Gewährleisten einer langen Lebensdauer. Die Disziplin Konfigurationsmanagement bildet den methodischen Ansatz, diese Probleme besser zu beherrschen. Software-Konfigurationsmanagement faßt die Herstellung von Softwaresystemen als eine Abfolge von kontrollierten Änderungen an gesicherten Zwischen- und Endergebnissen auf. Dargestellt werden die Objekte und Funktionen des Software-Konfigurationsmanagements sowie die hierfür in großen Software-Projekten benötigten Methoden, Instanzen und Hilfsmittel.     

Information for Authors

正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and     

Editorial:Brain-machine interface(BMI) and cyborg intelligence

正Brain-machine interfaces(BMIs)aim at building a direct communication pathway between the brain and an external device,and represent an area of research where significant progress has been made during the past decade.Based on BMIs,mind information can be read out by neural signals to control     

Information for Authors

正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and overseas to the world’s scientific circles,especially to stimulate     

SCIENCE CHINA Information Sciences SUBJECT INDEX TO VOLUME 57(2014)

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