C/S模式下面向对象的电力系统绘图软件的开发设计

介绍了在C/S(Client/Server)环境下采用面向对象的设计思想和数据库技术的电力系统绘图软件的设计和实现方法 ,说明了符号组件的设计思想 ,列出了符号组件类的层次关系和图形数据表的结构。该软件用Delphi语言和SQL(StructuredQueryLanguage)语言实现编程和查询工作 ,并应用于襄樊供电局电能量远程采集与分析系统。     

基于Web的CSCW实现技术研究

首先介绍了ＣＳＣＷ的基本概念、主要分类,然后从不同层面对ＣＳＣＷ的实现机理和技术特点进行了分析,并结合目前国际上开展的ＣＳＣＷ研究开发工作总结出了一般意义的实现方法,重点研究了基于Ｗｅｂ的ＣＳＣＷ实现与开发技术,同时对其中的一些关键技术问题进行了阐述。     

Building KidPad: an application for children's collaborative storytelling

Collaborating in small groups can be beneficial to children's learning and socializing. However, there is currently little computer support for children's collaborative activities. This was our motivation for building KidPad, a collaborative storytelling tool for children. KidPad provides children with drawing, typing, and hyperlinking capabilities in a large, two-dimensional canvas. It supports collaboration by accepting input from multiple mice. In building KidPad, we developed solutions to problems common to all single-display groupware applications for children: using an intuitive user interface metaphor that can support collaboration, and obtaining input from multiple devices. We addressed the need for an appropriate user interface metaphor by using the local tools metaphor. In developing the concept of local tools we learned about the importance of addressing the issue of global modes. Our solution for obtaining input from multiple devices was MID, an architecture written in Java. In building MID, we learned about the importance of building flexible architectures that can support a wide range of applications and devices in a consistent manner, and that are easy to extend and use by programmers. This paper describes our work on local tools and MID in the context of building KidPad, and aims to provide developers with valuable insights into how to develop collaborative applications for children. Copyright © 2004 John Wiley & Sons, Ltd.     

基于ASP的企业电子邮件系统

基于ASP的企业电子邮件系统,邮件收发须创建Jmail组件以连接电子邮件服务器.收邮件以用户账号、密码和POP3服务器连接,获得电子邮件纪录集并建立循环,接受每个邮件各段信息并保存等待用户查验.发邮件通过Jmail参数,以ASP内置对象获得电子邮件各段信息并付给Jmail相应属性,再发送邮件并根据返回信息处理.     

基于ASP技术的矿井排水泵在线选型及性能曲线绘制

为提高矿井排水泵的选型效率,实现资源技术共享,利用ASP技术,调用VB编写的ActiveX组件,在网上动态生成性能曲线图,实现了矿井排水泵的网络选型。重点介绍了系统开发技术及部分模块设计,并以实例验证了系统的正确性和稳定性。     

虚拟式流体参量集成测试系统及其实现

为了实现对流体参量的自动测量,运用虚拟仪器设计思想,采用组件技术、海量数据存储技术及仪器通用化设计方法,设计并实现了虚拟式流体参量集成测试系统.该系统能同时对流体的温度、压力和流量等进行动态测试.实验室演示表明,该集成测试系统性能稳定,操作简单,功能较强大.     

基于协同的分布式入侵检测模型研究

有效的数据交互与共享是分布式入侵检测的前提。提出协同的概念,并从实现信息共享和协同角度,对分布式入侵检测系统存在的主要技术难点进行分析,由此在系统结构、策略管理、检测技术等层次上提出了一种新型的层次化组件协同模型(HGCM)。该模型针对分布式数据源进行分布式协同处理,从负载动态均衡、组件通信等方面在各个组件之间实现高效的信息共享和协同分析,避免了关键节点的处理瓶颈,提高了系统的容错性和协同能力,以实现真正意义上的分布式入侵检测。     

基于MapX的空间管网信息系统设计与实现

采用GIS管理空间管网是提高城市建设效率的重要基础。文中介绍了利用Mapx组件开发某小区空间管网信息系统，实现了管网图层与属性数据之间的双向查询，支持局部剖面自动生成的空间数据结构设计与实现算法等。侧重研究空间管网的数据组织形式，以及空间信息和属性信息之间的关联。实验证明，利用Mapx组件能高效地建造空间管线信息系统；系统中的空间数据结构设计合理，能较好的实现管线数据的录入、查询以及综合管理等系统要求。     

基于Struts与Hibernate框架的企业报表组件

在企业级WEB应用中,会涉及到大量的报表,由于表对象的不同,模式层开发者须针对每个报表开发业务逻辑,使得代码复用率低,并且造成了极大的人力浪费。针对此问题提出并实现一个基于Struts和Hibernate框架的通用企业报表组件,自动生成企业报表。开发者只需给出查询的表对象、查询的条件、显示的类型(只读、可编辑),就能自动生成报表,不再需要针对报表编写任何的代码。     

Information needs in technical work settings and their implications for the design of computer tools

We interviewed information workers in multiple technical areas of a large, diverse company, and we describe some of the unsatisfied information needs we observed during our study. Two clusters of issues are described. The first covers how loosely coupled work groups use and share information. We show the need to structure information for multiple, partly unanticipated uses. We show how the construction of information compounds helps users accomplish some of this restructuring, and we explain how structuring flexibility is also required because of temperamental differences among users. The second cluster of issues revolves around collections of tightly coupled work groups. We show that information shared within such groups differs from information shared across group boundaries. We present the barriers to sharing which we saw operating both within groups and outside, and we explain the function of resource and contact broker which evolved in the settings we examined. For each of these issues we propose implications for information tool design.