UML建模在教务管理系统中的应用

统一建模语言UML是一种面向对象的可视化建模语言,也是现代软件工程中对象分析和设计的重要工具。该文在简述建模技术的基础上,结合教务管理系统的实际需求,以选课模块为例给出了通过UML进行静态建模和动态建模的过程。     

基于AADL的航电构型控制系统的建模分析

针对航电系统的不同构型仿真、系统加改装的验证,为了使构型控制系统可以根据应用需求可靠转换,以满足系统结构能够可靠重构的需求,采用先进的建模语言AADL(结构化分析设计语言)完成了对航电构型控制系统的建模设计。结合AADL对航电构型控制系统进行了详细的分析,展示了该系统的特征与关键技术,体现了此系统的工作原理与内部结构。该模型可以表达系统的功能与非功能约束,实现了系统级的组件建模策略,层次化地描述了系统的架构。     

基于UML仓库信息管理系统的分析与设计

统一建模语言（UML）已成为面向对象建模语言的标准,它溶入了软件工程的新思想、新方法和新技术。本文以仓库信息管理系统分析和设计为例,研究了基于UML软件系统建模中的需求建模、静态建模和动态建模的方法。     

基于UML建模的考试信息系统研究

UML是一种定义良好、易于表达、功能强大且普遍适用的统一建模语言,是面向对象建模领域的工业标准。介绍了UML统一建模语言及其建模工具Rational Rose,以考试信息系统为研究对象,分析了其需求和流程,并利用UML的用例图和顺序图及其建模工具Rational Rose对考试信息系统进行了建模。     

教务管理系统的UML建模

统一建模语言UML是一种面对对象的可视化建模语言,也是近代软件工程环境中对象分析和设计的重要工具.在简述UML软件建模技术的基础上.结合教务管理系统的实际需求,给出了UML系统建模的详细设计应用实例,并绍系统开发方案.     

基于统一建模语言的软件开发实例

统一建模语言(UML)是功能强大的可视化建模语言, 针对UML在建模方面的优势, 以汉中茶叶客户投诉管理系统为例, 从系统的功能分析、系统设计到系统实施, 重点描述了基于UML的软件系统开发建模过程, 并通过建模工具Power Designer 15, 构建了系统的需求模型、静态模型和动态模型.     

面向软件行为和多视点的需求建模方法

提出一种面向软件行为和多视点的需求建模方法,包括建模步骤和建模语言.其中目标系统根据问题域以及视点源被划分成视点.视点在需求模型中以实体的方式存在,每个视点通过从需求规格说明中提取的场景来描述,作为需求模型基本组成单位的场景模型则通过基本的行为复合而成.分析了基于行为和多视点的需求建模过程,讨论了需求建模语言:行为描述语言的语法和语义,并给出相关实例分析以及所实现的建模工具简介.     

基于UML的机房管理系统的设计

统一建模语言（UML）是面向对象分析和设计过程中重要的建模工具,适用于软件生命周期的各个阶段。使用UML对机房管理系统进行需求建模,静态建模,动态建模和实现模型的建模。将UML应用在系统的的需求,设计,实现等阶段．提高了系统的可维护性和扩展性。     

基于ZigBee的LAMOST无线控制系统设计

在LAMOST系统中,为了同时观测到4000个天体,需要控制4000个光纤单元,针对LAMOST无线控制系统中存在的问题,设计了一套基于ZigBee的无线控制系统.子节点控制板硬件设计包括电源设计和射频设计.电源设计采用开关电源,降低了子节点控制板的静态功耗;射频设计采用了阻抗匹配、电容电阻微调阻抗等关键技术,减少了信号的损失与反射,极大提高了子节点控制板的无线通信质量.针对主节点,采用了STM32+射频控制CC2530+功率放大RXF2401C的设计,提高了主节点无线发送的信号质量和接收的灵敏度.软件方面,对LAMOST控制的特征进行了研究,采用成组发送、逐一轮询的方式进行控制,采用奇偶校验、时效性查询的方法,提高了系统的通信可靠性,减少了通信时间.经试验测试,该系统具有高可靠性、高效率、低功耗等特点,可完全满足LAMOST工程上的应用.     

UML和设计模式在AMCCS中的综合应用

统一建模语言(Unified Modeling Language,UML)是一种可视化的面向对象的建模语言.设计模式是面向对象建模的一种辅助设计手段,它总结了面向对象设计的宝贵经验,使得在遇到相似场景时可以直接套用,提高复杂系统的设计效率.结合所实施的民航维修成本控制系统(AirCraft Maintenance Costing Control System,AMCCS)的开发工作,提出了使用UML技术进行系统整体规划设计、使用设计模式细化具体组件和部件的对象建模方法,已取得了良好的效果.     

Only connect: teaching, technology and telesis

Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.     

European Community policy and the market

Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.     

一种自适应子融合集成多分类器方法

融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。     

Avoiding semantic and temporal gaps in developing software intensive systems

Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.     

基于QTE的蒙古文显示机制研究与实现

蒙古语言是中国蒙古族使用的通用语言,由于蒙古文区别于其他文字的书写方式和其自身变形机制等特点,在很多通用的文字处理引擎中都不被支持。在嵌入式产品开发与应用领域中Linux加QTE已经成为流行方式。该文给出了一种在QTE环境上实现基于标准Unicode的蒙古文点阵显示和变形算法, 并自定义了支持蒙古文的QTE组件,扩展了QTE功能,为在Linux加QTE方式的嵌入式体系结构中处理蒙古文提供了一种解决方法。     

Designing economic np control charts: A programmed simulation approach

This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.     

基于AD9626的模拟信号采集存储卡设计

自然界的绝大部分信号都是以模拟的形式存在,因此模拟信号的采集转换存储在数字时代十分关键。文章讨论了在雷达信号处理领域基于AD9626的AD采集存储卡的设计原理、硬件结构和程序设计与芯片配置等问题,为今后相关领域的研究提供了可参考的方案。     

The development of robot art

Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008     

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.     

A human-computer interface for non-computer specialists

The COM teleconferencing system was designed to be easy to use for both beginners and people with much computer experience. A number of design choices in organizing the human-computer interface were considered very carefully. These design problems are not unique for teleconferencing applications, but will appear in many other developments of human-computer interfaces for non-computer specialists. This report discusses naming conventions, menu format, user commands, help facility and the treatment of ‘type ahead’ from the users.