远程教育中课件制作的XML实现

给出了一种远程教育课件制作的总体结构，并结合文档实例分块介绍相应XML具体实现的关键做法，对课件的网上制作与课件资源共享具有实用价值。     

一种基于XML的文档处理模型

在某军用软件开发过程中,由于系统文档格式不一致、结构性差,造成了系统文档管理、数据库存储及资源共享的不便。为解决这些问题,给出了一种基于XML的文档处理模型,应用XML和Oracle XML DB技术,对文档作结构化处理,并映射到关系数据库,映射过程中保持了文档模式语义约束和文档保真性;详细介绍了模型的结构和实现技术,并给出了应用实例。     

组件风格定制预览的研究与实现

针对程序员编写应用程序完整界面外观的工作量比较大,并且在XML文件中描述数最繁多的组件属性难题,提出了一种组件定制预览工具模型.工具模V根据Java Synth中组件的不同属性与XML的特点,按照UM以统一建模语言)的建模过程,实现通过设置组件属性来定制组件风格,达到当前组件风格的实时预览,直至程序员得到满意的组件风格.通过测试得出此工具可以满足程序员一般组件的界面外观的定制,并且可以在短时间内定制预览所需要的界面外观.结果表明,此工具降低了软件的开发成本,节省了程序员编写应用程序完整界面外观的工作量.     

基于Java Synth的组件外观定制工具的研究与实现

针对开发人员在利用Java Synth进行外观设计时需要在XML文件中描述数量繁多的组件属性这种缺点,文中利用Java与XML技术,按照UML的建模过程.实现了基于Java Synth的组件外观定制工具;通过设置组件的属性来定制组件外观,生成相应的XML文件.从而节省了Java程序员编写应用程序完整界面外观的工作量、时间,也降低了软件的开发成本.     

XML技术在网络类课件制作中的应用

本文论述了XML技术在远程教育领域中的一个应用基于XML的课件制作管理工具的实现,使用本工具生成的Web课件符合IMS规范,可以实现远程教学资源的标准化和开放化。     

可视化XML文件的自动生成技术研究应用

界面自动生成工具是电信OMC（操作维护中心）中CAF（公共应用功能）模块3大核心技术之一。为了可视化地编辑XML文件，在开发该工具的过程中对组件拖动技术进行了详细研究。将Java、JDOM和XML技术相结合，实现了对工具中组件的拖动和现有界面的保存。     

基于XMLAPI的组件扩展接口变异测试方法

在传统的组件接口变异测试方法基础上,提出一种基于XML API的组件扩展接口变异测试方法.首先给出组件扩展接口测试的框架,建立起扩展接口的定义模型.XML API在组件内部建立处理数据集的XML校验器,实现了原组件接口的扩展.借助组件外部的XML Schema变异算子,完成了组件内部数据集的自动验证和组件接口参数的测试.该方法具有多种优点,例如可视的多功能测试接口、可跨平台的通用性的测试语言等.实验表明,该方法可以应用于COM,CORBA,EJB等多种组件的测试环境.     

实用快捷的资源制作工具--SNG网络移动摄影棚

远程教学、视讯会议和网络现场直播等需求除了需要宽频网络作为基础设施外,还需要有一套实用快捷的资源制作工具的配合.在现有网络构架的基础上独立设置一个专用服务器,借助于特殊的软件和制作工具,可以将优秀课件、上课实况制作成图像及文档并存的电子文件,将这些文件存档到专用服务器当中,实现资源共享.     

一种开发ASP.NET服务器组件的改进方法

本文提出一种开发ASP．NET服务器组件的改进方法。该方法是在创建过程中应用XML／XSLT技术,实现由外部的XML文件生成相应的ASP．NET服务器组件。这种方法提高了组件开发的效率和组件的可维护性与可扩展性。文中给出了应用改进方法开发ASP．NET服务器组件的实例。     

基于XML的个性化Web课件制作工具

首先介绍了一个能够充分体现教师教学风格的基于XML的个性化Web课件制作工具模型,它把网络、XML、多媒休相结合,充分发挥了网络的交互性、XML的组织数据的灵活性,Web浏览器所具有的多媒体特性,然后介绍了基于XML的Web多媒体课件的制作工具研究与实现,使教师制作基于XML的个性化Web课件的工作变得更加方便与容易。     

支持信息采集的标准化Web课件制作管理

论述了XML技术在远程教育领域中的一个应用-标准化课件的制作与管理，设计开发了一套基于IMS规范的标准化Web课件制作管理工具，并支持对学生学习信息的自动采集。     

基于XML的可重用Web课件写作管理平台

远程教育的快速发展,要求制作大量规范化的Web课件。在本文中,我们设计开发一个从课件写作、内容集成、上网发布、信息反馈一体化的Web课件写作管理平台,使用该平台可以简易、快速地开发Web教学课件,并通过XML技术,实现课件重用。     

Improving SMIL with NCM Facilities

SMIL is an XML-based language for specifying documents with temporal and spatial synchronization relationships, recommended by the W3C. However, SMIL has some limitations as a hypermedia authoring language. In order to overcome these limitations, this work presents the integration of SMIL documents with HyperProp, a hypermedia system based on an object-oriented model called NCM (Nested Context Model). As benefits, the integration makes both NCM facilities and HyperProp authoring and formatting tools available for SMIL documents. Furthermore, this work presents how the SMIL language can be extended to incorporate NCM facilities through the inclusion of new XML elements and attributes found in NCL, the NCM declarative language. Among the facilities, we can highlight the possibility of reusing document components and their presentation characteristics, offering flexibility in temporal specifications, adapting a document presentation according to user navigation and specifying n-ary relationships expressing causality or constraint among components.     

XTemplate 3.0: spatio-temporal semantics and structure reuse for hypermedia compositions

The use of declarative languages in digital TV systems, as well as IPTV systems, facilitates the creation of interactive applications. However, when an application becomes more complex, with many user interactions, for example, the hypermedia document that describes that application becomes bigger, having many lines of XML code. Thus, specification reuse is crucial for an efficient application development process. This paper proposes the XTemplate 3.0 language, which allows the creation of NCL hypermedia composite templates. Templates define generic structures of nodes and links to be added to a document composition, providing spatio-temporal synchronization semantics to it. The use of hypermedia composite templates aims at facilitating the authoring work, allowing the reuse of hypermedia document common specifications. Using composite templates, hypermedia documents become simpler and easier to be created. The 3.0 version of XTemplate adds new facilities to the XTemplate language, such as the possibility of specifying presentation information, the attribution of values to variables and connector parameters during template processing time and the template ability to extend other templates. As an application of XTemplate, this work extends the NCL 3.0 declarative language with XTemplate, adding semantics to NCL contexts and providing document structure reuse. In addition, this paper also presents two authoring tools: the template processor and the wizard to create NCL documents using templates. The wizard tool allows the author to choose a template included in a template base and create an NCL document using that template. The template processor transforms an NCL document using templates into a standard NCL 3.0 document according to digital TV and IPTV standards.     

Constructing SCORM compliant course based on High-Level Petri Nets

With rapid development of the Internet, e-learning system has become more and more popular. Currently, to solve the issue of sharing and reusing of teaching materials in different e-learning system, Sharable Content Object Reference Model (SCORM) is the most popular standard among existing international standards. In SCORM standard, the Sequencing and Navigation (SN) defines the course sequencing behavior, which controls the sequencing, selecting and delivering of a course, and organizes the content into a hierarchical structure, namely Activity Tree (AT). However, the structures with complicated sequencing rules of Activity Tree (AT) in SCORM make the design and creation of course sequences hard. Therefore, how to provide a user-friendly authoring tool to efficiently construct SCORM compliant course becomes an important issue. However, before developing the authoring tool, how to provide a systematic approach to analyze the sequencing rules and to transform the created course into SCORM compliant are our concerns.Therefore, in this paper, based upon the concept of Object Oriented Methodology (OOM), we propose a systematic approach, called Object Oriented Course Modeling (OOCM), to construct the SCORM compliant course. High-Level Petri Nets (HLPN), which is a powerful language for system modeling and validation, are applied to model the basic sequencing components, called Object-Oriented Activity Tree (OOAT), for constructing the SCORM course with complex sequencing behaviors. Every OOAT as a middleware represents a specific sequencing behavior in learning activity and corresponding structure with associated sequencing rules of AT in SCORM. Thus, these OOATs can be efficiently used to model and construct the course with complex sequencing behaviors for different learning guidance. Moreover, two algorithms, called PN2AT and AT2CP, are also proposed to transform HLPN modeled by OOATs into a tree-like structure with related sequencing rules in Activity Tree (AT) and package the AT and related physical learning resources into a SCORM compliant course file described by XML language, respectively. Finally, based upon the OOCM scheme, a prototypical authoring tool with graphical user interface (GUI) is developed. For evaluating the efficiency of the OOCM approach compared with existing authoring tools, an experiment has been done. The experimental results show that the OOCM approach is workable and beneficial for teachers/instructional designers.     

XML的客户端表示技术在网络课件制作系统中的实践与比较研究

XML的客户端表示技术灵活多样,在网络课件开发系统中可以得到较好的应用.在一个远程教育平台的网络课件制作系统开发中应用XML技术,实现了对同样课程内容在多种不同风格模板下的呈现,并实现了各种模板之间的灵活切换和定制.在实现过程中,采用多种技术手段对XML的客户端表示技术进行了多方面实践和比较.     

基于XML和工作流技术的综合信息管理平台的设计

基于XML和工作流技术开发的IIMS平台,采用Web三层体系和组件化结构,通过XML技术实现了数据的共享和协同,通过数据的检索、重用和分析易于企业的运行管理和决策。本文介绍了平台的设计及过程描述,并提供了XML描述的框架。     

MUMEDALA: An approach to multi-media authoring

Education and instruction are each critically dependent upon appropriate techniques for the dissemination and communication of knowledge, information and data. In order to achieve these objectives a variety of different communication channels (or media) are employed—either simultaneously or in sequence. An integrated multi-media instructional environment is one in which a number of teaching resources are used to implement an instructional process: sound, text, static/dynamic imagery, simulations and diversions. Such systems usually include a computer as a necessary control element. Because of their complexity, computer-based multi-media teaching systems often require the use of a special type of courseware development tool known as an author language.The MUMEDALA (MUlti-Media Authoring LAnguage) system is an authoring facility that is designed to enable the creation and control of a sophisticated interactive learning environment. Such an environment might contain a variety of channels that enable (1) the presentation of instructional material and (2) the capture of student response and monitoring data. The latter provides the means of achieving highly individualised instructional schema based upon the use of a range of teaching media. This paper presents an overview of the MUMEDALA system, its design features and the progress being made towards its realisation.