用Flash组件技术实现积件思想

介绍了Flash组件技术,组件具有重用性、可积性、开放性,以Flash为积件开发平台时,Flash组件的特点能够实现积件的主要思想.通过实例,介绍了如何利用Flash组件技术制作积件资源.     

基于面向对象技术的积件系统的设计

本文描述了一个基于面向对象技术的积件系统的设计思想及其工作原理，给出了该系统写作组合平台的设计和系统的课件运行的动态模型。该系统将积件对象化，面向对象积件库由积件对象组成，外部与积件对象、积件对象与积件对象之问只能通过消息发生联系。积件对象通过接受消息驱动相应的教学服务。这样的系统设计可增加积件的独立性与可积性，实现课件的动态重组。     

论积件与多媒体课件开发

本文着眼积件思想与多媒体课件对教学的影响，论述了积件与多媒体课件的理论辨证，讨论了多媒体课件设计与开发，着力展示了一个崭新的积件平台。     

积件在教学软件中的应用

在网络教育全球化，个人教育终生化的今天，以往单一的教学已不能满足多种教学环境的需要，因此积件思想的产生是一个历史的必然。本文论述了积件的定义、作用、积件与课件的比较及其积件在教学软件中的应用。逐条阐述了传统课件在实际应用中存在的局限性，并以《空间里的关系》这个基于积件思想开发的积件在Authorware软件中应用为例，展示了积件在教学软件中应用的优越性．     

无关开放意趣——游戏测验型积件《乌龟赛跑》点评

窥一斑而知全豹。看到游戏测验型积件《乌龟赛跑》便知道积件思想已经在广大教师中生根、发芽了。其模板性、趣味性、自由灵活性使之在测验类课件中脱颖而出，给人以耳目一新的感觉。它熔游戏、测验于一炉，集自由开放于一体，尝试运行数次后，在我的脑海中不禁浮现出三个关键词：无关、开放、意趣。     

计算机辅助教学新思想——积件

在计算机辅助教学领域,“课件”已经是一个所有人都耳熟能详的名词了。随着信息技术和教育技术的发展,课件开发领域出炉了一个新的革命性概念——积件。本文试从理论与实践两个角度对积件思想进行简略介绍,并给出方案和思路。     

基于网格的远程积件教学系统

阐述了开发以积件思想为基础的远程教学系统现状面临的问题,提出了基于数据网格的远程积件教学系统框架,并分析了主要构成形式及实现的关键技术.     

基于VB的积件开发技术

积件的理念与技术被越来越多地应用于CAI程序开发中。VB以其丰富易用的图形、图像和音／视频处理技术适用于积件系统的开发。由于许多师生掌握VB编程技术，因而基于VB的积件开发技术必将得到广泛应用。     

基于积件的网络课程构建技术

积件是继课件之后的新一代教学软件，符合现代教材建设的要求。如何利用积件技术来改进现有网络课程存在的资源重复性高、课件开发和利用率低等问题，本文对此进行了深入分析和研究，提出了基于积件的网络课程构建技术。     

基于SY方法的MIS开发与实现

该文简要介绍了ＳＹ方法的基本思想，包括基于ＳＹ方法的ＭＩＳ开发模式，ＭＩＳ体系结构以及集成开发环境等；分析了在用户需求基础上设计数据字典和功能说明的内容及积术块的设计原则和设计步骤；讨论了应用系统的定义，动态构造和实现过程以及系统维护和动态调整方法；特别强调了面向对象技术和软件重用性在ＳＹ方法中的作用。     

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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