Agent技术在维修性设计评估系统中的应用研究

分析了维修性设计评估中存在的问题 ,建立了一个基于Agent的维修性设计评估系统的智能决策模型     

Design and implementation of a t-way test data generation strategy with automated execution tool support

To ensure an acceptable level of quality and reliability of a typical software product, it is desirable to test every possible combination of input data under various configurations. However, due to the combinatorial explosion problem, exhaustive testing is practically impossible. Resource constraints, cost factors, and strict time-to-market deadlines are some of the main factors that inhibit such a consideration. Earlier research has suggested that a sampling strategy (i.e., one that is based on a t-way parameter interaction) can be effective. As a result, many helpful t-way sampling strategies have been developed and can be found in the literature.Several advances have been achieved in the last 15 years, which have, in particular, served to facilitate the test planning process by systematically minimizing the test size required (based on certain t-way parameter interactions). Despite this significant progress, the integration and automation of strategies (from planning process to execution) are still lacking. Additionally, strategizing to sample (and construct) a minimum test set from the exhaustive test space is an NP-complete problem; that is, it is often unlikely that an efficient strategy exists that could regularly generate an optimal test set. Motivated by these challenges, this paper discusses the design, implementation, and validation of an efficient strategy for t-way testing, the GTWay strategy. The main contribution of GTWay is the integration of t-way test data generation with automated (concurrent) execution as part of its tool implementation. Unlike most previous methods, GTWay addresses the generation of test data for a high coverage strength (t > 6).     

Effects of computer-based testing on test performance and testing motivation

Computer-based testing (CBT) is a green computing strategies used to reduce paper consumption. However, some scholars have questioned the effectiveness of CBT and suggested for conducting systematic studies on CBT to carefully check its reliability and validity before opting for it. Recently, some studies have evaluated the effectiveness of CBT by comparing it with paper–pencil testing (PPT), and the findings were inconsistent. Besides this, most of these studies have been conducted using quasi or basic experimental designs without identifying testing effects on test takers. The limitation of these design is testing effects might occur when a participant in the control or treatment group is tested at least twice on a same test, and it influences the outcomes of taking a posttest, therefore, the findings might be misinterpreted. This study employed a Solomon four-group experimental design (2 × 3 factorial design) on a group of student teachers (n = 140) to compare CBT and PPT on test performance (test scores), testing time and testing motivation. Results indicated that the CBT mode is more reliable in terms of internal and external validity. The CBT significantly reduced testing time and developed stronger self-efficacy, intrinsic and social testing motivation in the participants.     

均匀设计在面向对象软件测试数据生成中的应用研究

针对面向对象软件的测试,论述了均匀设计的原理及其在测试数据生成中的应用。提出了因素、水平的构造方法和均匀设计表的选取原则,并结合实例进行了分析。     

试卷质量分析与综合评价系统的设计与实现

为了完善高校试卷质量综合评价体系,提出构建一个基于B／S构架体系的综合评价系统,以提升教学管理水平。该系统的设计围绕四个主要分析和评价指标的算法展开,通过对算法公式的分析与比较,验证评价指标对于整个系统的重要性。然后将面向对象技术与数据库技术结合起来,设计建立系统的各功能模块,并对系统构建、动态数据库设计和评价结果发布的技术方法进行研究。通过系统的应用,能使学校在成绩管理、试卷质量分析工作中更加科学化、规范化。     

远程测试系统的设计探讨

介绍了测试系统的支持环境并重点探讨了测试的设计原则和系统结构的设计。     

The estimation of test signal quality by means of two simple filters in ADC testing

Methods for ADC dynamic testing standardized in IEEE standards are primarily based on sampling sine wave test signal. Harmonic generator is recommended with the THD and the SNHR about 10 dB better than those of the tested ADC. However, this condition creates problems for testing state-of-the-art ADCs. This paper proposes an easy method for testing signal spectral purity. The test signal, which is passed by two simple analog filters, is measured by a common ADC, whose nonlinearity is post-corrected mathematically. The results are then compared with the common approach of applying a notch filter, and uncertainties of results are evaluated.     

万能试验机远程测控系统的研究与开发

针对传统万能试验机测试系统人为影响因素高、测试准确度低等弊端,采用虚拟仪器技术,在LabWindows/CVI平台上研制开发了一套基于PCI总线的WE300A型万能试验机微机测控系统。本系统可对试验机试验过程中的数据进行全面跟踪,将数据发送到网上,通过DataSocket服务器传输到需要这些数据的终端节点计算机。本系统可以在现场发出声光报警信号,并且通过E mail将数据发送到远端监测人员手中。     

Multi-dimention dynamic testing of multi-hierarchy man-power and its expert system of group optimization

Because of the rapid development of the science and technology, Relative Multi-Hierarchy Man-Power (Abbreviated as MHMP) are required. So higher demands about their knowledge structure, intelligent structure, creativity, social relation, psychology quality, personality character and adaption capacity to environmentare proposed. But so far, there isn't a system which can test the integrated quality of the MHMP. This results in the Lacking of the science and resonable in the management system of the MHMP and prevents the development of the special skill of the MHMP.     

测试自动机的测试驱动器设计与实现技术

介绍了测试自动机的测试驱动器设计与实现技术,给出了测试驱动器接口的测试用例、测试输出的形式化定义,提出了一种通用的“客户／服务”测试驱动模型及其实现技术。     

基于ZigBee的生产线监控系统的设计与实现

根据生产线的实际需要,设计并实现了用于生产线的无线信息传输网络节点,研究了系统结构,完成了系统的软硬件设计,详细分析了ZigBee组网通信、应答机制建立等关键技术。测试结果表明,系统传输距离远、可靠性高,能够满足实际应用需要。     

电信自动中继拨测系统的设计与应用

目前,自动中继拔测系统极少应用于电信领域.针对现有电信运维中的难题设计实现了电信自动中继拨测系统,阐述了该系统软件部分和硬件部分,剖析了两者基于Socket机制和UDP协议的具体实现方案,介绍了该系统的特色之处.结合具体实例提出了在固网智能化工程中采用电信自动中继拨测系统的新方法,为电信行业和自动拨测系统的发展提供了参考.     

C++类测试描述语言的设计和实现

根据一种软件可测性设计技术——软件内建自测试的实施方案,该文提出了一种针对C 类测试的测试描述语言TDL,以提高C 类测试数据的存储结构化,方便其共享和复用。重点讨论了TDL语言的核心对象和结构,并给出了一个TDL程序的实例。     

基于TCP／IP的水利试验测控系统设计

本文介绍一种基于TCP／1P协议的新型水力物理模型试验测控系统，该系统将目前最先进、最流行的工业以太网技术应用到物理模型试验研究的测控系统中，实现多点水位、流速和流量等水力学重要参数的实时采集、处理、储存、显示及打印，并具有在线查询及数据分析功能。     

基于J2EE的考试系统的设计与实现

分析了J2EE体系架构及其在考试系统中的应用,综合应用B/S和C/S模式相结合的方式来进行设计,并结合实际,详细介绍相关功能模块的实现,论述了自动组卷实现的关键技术。     

数学题库及自动组卷系统的设计与实现

本文介绍的数学题库及自动组卷系统使用了C＋＋/VC课程的基本设计方法,是基于windows平台下的数据库系统,界面有几个模块组成,分别为登录模块,维护模块,浏览模块和出卷模块等模块界面。自动出卷模块和组卷模块为出卷模块包含功能,修改、删除、添加等功能则集合于维护模块。本系统主要运用的后台数据库为Access数据库,选用Visual Basic为开发工具。     

分布式计算机应用水平考试系统的设计与实现

传统的基于“集中式”的计算机应用水平考试系统存在诸多弊端,如过分依赖中心服务器、造成服务器的负载过大以及系统的扩展性和安全性差,同时,传统的集中控制模式使得系统的维护变得复杂和困难,介绍了分布式计算机应用水平考试系统的软件结构,描述了系统实现过程中的主要技术,对基于网络的考试系统的安全性,主观题阅卷系统的智能化设计进行了详细论述。     

舰载作战指挥系统测试平台的设计与实现

作战指挥系统是战斗力生成的核心,如何构造测试平台来测试系统软件的功能、性能指标进而对系统效能进行评估,是必须研究和解决的问题.介绍了舰载作战指挥系统仿真测试平台的测试需求和设计思想,重点论述了测试平台的体系结构及其实现技术.分析了实验室测试和海上靶场测试各自的局限性,提出了将二者进行有机结合的解决思路.以雷达为例介绍了装备模拟器的实现原理,并给出了自然、电子干扰因素对雷达探测能力产生影响的技术方案.     

卫星制导弹药综合检测系统的设计与实现

设计了一种卫星制导弹药综合检测系统.介绍了该综合检测系统的总体设计思想,系统组成、工作原理和主要技术途径,并对该系统的各组成部分的功能和软件设计流程作了说明.实际应用表明,该系统性能稳定可靠,操作简便,可提高卫星制导弹药综合检测的测试精度和工作效率,具有良好的使用性能和价值.     

校园网上商城订单处理部分系统分析和设计

本文通过设计校园网上商城的订单处理流程、功能和数据库,解决网上商城订单处理的问题,进而解决学生的实习问题.