Cooperative Hypermedia Editing with CoMEdiA

CoMEdiA is a groupware tool which enables co-authors to cooperatively produce hypermedia documents.CoMEdiA allows co-authors to communicate their ideas,drafts,guidelines,constraints and annotations to other co-authors.In uses a mix of communication patterns,media and document organization to enable co-authors to keep on exchanging information(remotely or face-to-face),improving passages and modifying notes until a final document is achieved.We did not concentrate on th depth but on the breath of the features.Our efforts were on integrating and corrdinating concepts from collaboration,multimedia and hyper organization rather than on making a specialized system in any of them.We began with the text medium and are now including bitmaps and raster images.Later sound and video will also be integrated.In this paper we describe and sustain the available capacites.     

Tree-Based Concurrency Control in Distributed Groupware

We present a novel algorithm, called dARB, forsolving the concurrency control problem indistributed collaborative applications. Themain issue of concurrency control is resolvingthe conflicts resulting from simultaneousactions of multiple users. The algorithmreduces the need for manual conflict resolutionby using a distributed arbitration scheme. Themain advantages of our approach are thesimplicity of use and good responsiveness, asthere are no lock mechanisms. Our algorithmrequires the applications to use a tree as theinternal data structure. This makes itapplication independent and suitable forgeneral collaborative applications. The treerequirement is reasonable since many newapplications use XML (extensible MarkupLanguage) for data representation and exchange,and parsing XML documents results in treestructures. Example applications of thealgorithm, a group text editor and acollaborative 3D virtual environment calledcWorld, are implemented and evaluated in theDISCIPLE collaboration framework. We alsointroduce awareness widgets that users avoidgenerating the conflicting events and help inmanual conflict resolution.     

When are Personal Technologies for Children?

This paper will discuss the various issues surrounding personal technologies for children. Three critical questions will be discussed: Why can technology be important for children? What activities can technology support? And what changes should be considered for the future?     

基于LotusDomino群件的工作流管理信息系统开发

关键业务的应用开发离不开工作流技术的支持。通过对工程项目管理系统的需求分析 ,利用LotusDomino提供的工作流驱动引擎开发了一种基于工作流技术的管理信息系统 ,以“推出”的方式将待处理业务呈现在用户面前 ,实现了工作流自动化     

基于群件技术的企业OA系统设计

介绍了基于群件技术的企业OA框架，针对跨地域的大中型企业，设计了一个利用ASP／COM组件来实现的基于群件技术的办公自动化模型，阐述了该模型中的系统结构设计和功能设计，对以协同工作和知识管理为目标的第三代办公自动化系统的研究具有一定的参考价值。     

基于群件的协同工作流平台选型研究

对目前第2代办公自动化系统中基于群件的开发平台进行了比较，通过对IBM公司的Notes平台和Microsoft公司的Exchange平台各自的特点之间的对比，强调了Lotus Notes由于提供了群件和工作流技术，对非结构性文档的非凡处理能力以及独特的安全性能，因此特别适合于开发群件模式的办公自动化应用，并对如何进行协同工作流平台的选型进行了客观细致的分析。     

基于数字水印的电子印章系统研究与实现

印章图像在实际商业交往中的应用很广泛,为确保其在印章域中的安全性,需要考虑一种新的基于印章域数字水印的防伪机制,并且对于打印扫描过程具有强鲁棒性.提出了一种在印章图像中嵌入数字水印以达到防伪目的的新思路,针对传统印章的易伪造弊端,通过将密码签名原理和数字水印技术应用于电子印章之中,并结合COM组件技术实现了机密文档的防篡改功能,身份认证功能及不可否认性功能.     

Loose Coupling and Healthcare Organizations: Deployment Strategies for Groupware

Healthcare organizations are often organized in a modular, loosely coupled fashion where separate and semi-autonomous work units specialize in different areas of care delivery. This partitioning allows each unit to adapt to emerging practice standards in its area of expertise and to adjust to its local work environment. However, organizational loose coupling can limit the flow of information within organizations and can make it difficult to coordinate services when patients’ care is dependent on professionals from more than one unit. Groupware systems have the potential to improve coordination and information access in healthcare organizations. However, modularity and loose coupling make it difficult to introduce new systems when they span more than one unit, since authority is not always centralized and since perceptions and frames of reference on new deployments differ across units. In this paper, we define a groupware deployment framework for loosely coupled healthcare organizations that has two parts: a set of deployment challenges and a set of deployment strategies. The deployment challenges include: difficulties centralizing deployments, perceptions of inequity, role conflicts, and problems achieving critical mass. The deployment strategies outline a preliminary set of approaches for addressing the difficulties of deploying CSCW systems in loosely coupled healthcare organizations. We illustrate the framework by presenting a case study of a groupware deployment in a home care setting.     

基于Internet的水利地理信息系统研究

随着GIS和Internet技术的不断发展,传统的水资源管理手段和技术正面临着各种挑战。针对南通市水利地理信息系统的管理现状,将GIS与Internet技术相融合,选用Visual Basic6.0和MapX组件作为前端开发工具,利用Internet技术在Web上发布空间数据。实现了局、县、乡三级水利地理信息系统的网络管理和维护,极大地提高了业务管理水平和水资源管理人员的工作效率。同时也为普通用户提供了空间数据浏览、查询。     

煤矿数字化远程综合监控系统的设计与实现

通过甘肃省煤炭安全生产监督管理局煤矿安全信息监控网络系统的建设,介绍了煤矿数字化远程综合监控系统的网络结构、信息传输模式、系统软件等的设计以及实施该系统所应用的关键技术。