基于数据模型的接口用例自动生成

在嵌入式软件设计过程中，接口是非常重要的设计元素，对接口协议进行验证是接口测试中的主要内容。但现在软件接口类型不同，需要人工识别与组装各种接口的测试用例报文，接口协议的复杂度直接影响测试用例编制的难度与工作量。为实现接口测试用例的自动生成，提出一种基于数据模型的接口用例自动生成技术，根据复杂的接口协议文件，建立被测软件的接口协议形式化模型，准确、高效地表达接口协议规则及要素，并使用动态计算与替换算法得到相应业务场景下的预期结果，生成标准化的测试用例，更可兼容多种类型的接口，有效提升了接口测试效率。     

基于Tcl的ARP协议冒烟测试系统设计

协议的冒烟测试在网络产品的设计过程中有着重要的作用。文章关注于协议冒烟测试系统的设计和实现,提出了一种单机虚拟测试方法,并采用该方法实现了一个基于Tcl语言的协议冒烟测试系统,并在实际应用中取到了较好的测试效率。     

OSPFv3协议的冒烟测试及其实现

协议测试是保证协议实现和协议描述相一致的重要手段，OSPF协议是一个广泛应用的链路状态协议。冒烟测试具有降低系统集成风险，提高开发过程可视性和缩短产品开发周期的特点，该文设计并实现了基于TCL语言的协议冒烟测试系统，对OSPFv3协议实现了测试集并对路由器产品进行测试，实验表明系统具备高效易用的特点。     

基于python的接口自动化测试框架设计

本文围绕现阶段接口自动化测试的产生原因,以及怎样设计框架去实现接口测试的自动化,这两个方面去讨论.通过借助python语言并和unittest来实现接口自动化测试的框架的建设,并将其应用于冒烟测试、回归测试,在敏捷开发过程中缩短测试时间,提高产品质量,该框架可复用性高,测试人员只需提供接口测试用例,配置jenkins'定时任务,生成测试报告发送到企业邮箱内,能够更快更方便到监控接口的正常运行.     

基于MVB的协议一致性测试系统设计

针对不同生产厂家的多功能车辆总线(Multifunction Vehicle Bus,MVB)设备存在兼容性和互操作性适应度差的问题,设计了基于MVB的协议一致性测试系统,给出了系统的总体结构、软硬件设计与实现方案,并构建测试集优化模型。测试系统的测试电路接口模块包括物理层接口模块和链路层接口模块两部分,负责将采集的MVB总线上的数据传递给控制与测试模块进行分析和处理。控制与测试模块软件部分着重设计了测试用例集优化模型,并采用高效的商业求解器CPLEX进行有效求解,提高了测试效率。实际运行结果表明:该测试系统是稳定并且高效的,可应用于不同MVB设备的协议一致性测试。     

基于XML的6 LoWPAN协议一致性测试系统的实现

文中介绍了协议一致性测试基本理论,针对6LoWPAN现有草案及实验性协议的实现,设计了一种具有可扩展性的6LoWPAN协议一致性测试平台。文中从该平台的测试系统和被测系统两个部分出发,对基于Windows操作系统实现的测试系统,描述了该平台的功能、各个模块的框架结构和实现方法;应用XML可扩展标识语言设计了测试用例,并应用libxml2对XML标记的测试用例进行解析。设计和实现了报文接收发模块。被测系统部分,对Linux系统端实现的6LoWPAN协议栈进行了测试,达到了一致性测试的目的,对测试结果进行了分析。     

6LoWPAN适配层协议的一致性测试

为6LoWPAN适配层协议设计和实现了一致性测试的测试用例和测试平台。在分析6LoWPAN适配层协议的基础上,划分了测试组,建立了测试目标,根据测试目标设计了近100个测试用例。根据测试中激励发送和协议行为观测的需要,设计并实现了测试平台。在该平台上,成功运行了90多个测试用例,对网络实验室的适配层实现进行了测试,达到了一致性测试的目的。     

基于XML的SDK自动化测试框架的设计与实现

在研究自动化测试技术与方法的基础上,提出了一种基于SDK接口的自动化测试框架,并给出了具体的自动化测试的基本流程和具体的测试框架,采用C、C++语言进行SDK自动化测试框架的设计与实现,结合实际的例子给出了生成的,XML形式的测试用例和生成的测试报告,测试日志.该测试框架存在以下优点:减小了测试用例的编写难度,测试人员操作起来比较方便;可以方便地运用到其他接口参数的黑盒测试中,维护起来较容易,进行功能扩展较灵活.     

一种集成化多接口航电网络测试平台设计与实现

针对目前先进飞机的航电网络架构,分析其测试平台的特点和应具有的基本功能,设计了一种集成化、多接口、可动态配置的航电网络测试平台,支持对航电网络各种类型数据接口的通信测试、航电系统的模拟仿真及系统测试验证,通过零活的管脚编程实现了测试用例和测试配置的动态选择,设计并实现了测试平台硬件及上位机测试软件,并在航电网络测试工程实践中取得良好应用。     

基于TCL的DHCP协议冒烟测试

介绍了基于TCL的协议冒烟测试系统,对DHCP协议进行形式化分析,生成EFSM图,采用UIO方法生成一致性测试序列,并在该系统上针对提供DHCP服务的各网络设备进行了DHCP协议的冒烟测试,在实际应用中取得了较好的测试效率,缩短了产品研发周期,降低了风险,提高了产品的可靠性。     

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.     

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.     

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     

Explanation and prediction: an architecture for default and abductive reasoning

Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.     

Three Process Perspectives: Organizations, Teams, and People

This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)^SM and Team Software Process (TSP){^SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.     

基于复小波噪声方差显著修正的SAR图像去噪

提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。     

How do children do mathematics with LOGO?

Abstract  This paper considers some results of a study designed to investigate the kinds of mathematical activity undertaken by children (aged between 8 and 11) as they learned to program in LOGO. A model of learning modes is proposed, which attempts to describe the ways in which children used and acquired understanding of the programming/mathematical concepts involved. The remainder of the paper is concerned with discussing the validity and limitations of the model, and its implications for further research and curriculum development.