软件可靠性及其测试分析

系统分析了软件的可靠性以及目前软件可靠性测试的完整流程,重点介绍了软件可靠性评估的方法和步骤。随着信息技术的发展,软件产品在社会生活的各个领域应用越来越广泛,其质量好坏所产生的潜在影响也越来越大。     

基于三重相关的电磁检测信号处理

本文把三重相关技术应用于电磁检测中的磁信号分析处理,通过试验研究表明,三重相关技术可以有效地从噪声中恢复磁信号波形,特别是在低信噪比的情况下尤其明显,为电磁检测实际磁信号分析提供一种可供选择的方法。     

基于Web的CAT系统实现机制的探讨

本文在介绍CAT研究及应用的基础上,重点分析了CAT的实现原理及其关键问题,具体探讨了基于Web的CAT系统的实现。     

网络课程的可用性测试初探

随着网络教育的蓬勃发展,如何更有效地建设网络资源成为重要而迫切的问题。阐述了网络课程设计的可用性测试方法,并将视线追踪技术引入到网络课程的可用性测试中,获取学习者客观的眼动数据,分析人在网页浏览中的视觉特性,为网络课程设计者提供人的视觉参数。目的是使网络课程的设计更符合学习者的生理与心理方面的需要,使学习者的学习效率更高。     

An Alternate Multiple-Choice Scoring Procedure in a Macroeconomics Course

In the standard scoring procedure for multiple‐choice exams, students must choose exactly one response as correct. Often students may be unable to identify the correct response, but can determine that some of the options are incorrect. This partial knowledge is not captured in the standard scoring format. The Coombs elimination procedure is an alternate scoring procedure designed to capture partial knowledge. This paper presents the results of a semester‐long experiment where both scoring procedures were compared on four exams in an undergraduate macroeconomics course. Statistical analysis suggests that the Coombs procedure is a viable alternative to the standard scoring procedure. Implications for classroom instruction and future research are also presented.     

软件测试人员应具备的素质

主要阐述了作为一名合格的软件测试人员应具备的基本素质,同时简要说明了软件测试工程师在我国的发展概况及前景。     

加州自动驾驶汽车道路测试管理的特点及启示

美国加州凭借良好教育资源、科技资源、人才资源优势以及法律法规的开放性、包容性、权威性,吸引了全球各地的汽车企业、零部件供应商、科技企业、初创企业开展自动驾驶汽车道路测试,已经成为全球自动驾驶汽车路测的重要基地。通过对加州自动驾驶汽车路测管理发展突出的特点和经验做法进行系统梳理和深入分析,提出3点建议:加快我国智能网联汽车道路测试法规进程;完善推进国家级智能网联汽车测试示范区建设;定期发布智能网联汽车道路测试报告。     

网络考试系统的设计与实现

随着网络技术的不断发展和完善,网络考试代替纸张考试已是一种必然。本文运用ASP SQL Server 2000数据库系统,基于B/S架构,开发出无纸化网络考试系统,实现学生考试和教师出卷、监考、评卷、成绩发布等功能操作远程化。     

软件测试及关键技术

软件测试是提高软件可靠性最有效、最直接的方法之一。首先描述了软件测试的概念,给出了软件测试的四个根本特性,即动态性、有限性、选择性和预测性,在此基础上,对软件测试的过程、关键技术、管理方法进行了探讨,最后对现有测试方法进行了相关总结。     

Generic anthropometric and performance characteristics among elite adolescent boys in nine different sports

Abstract

The aim of the present study was to evaluate the Flemish Sports Compass (FSC), a non-sport-specific generic testing battery. It was hypothesised that a set of 22 tests would have sufficient discriminant power to allocate athletes to their own sport based on a unique combination of test scores. First, discriminant analyses were applied to the 22 tests of anthropometry, physical fitness and motor coordination in 141 boys under age 18 (16.1 ± 0.8 years) and post age at peak height velocity (maturity offset = 2.674 ± 0.926) from Flemish Top Sport Academies for badminton, basketball, gymnastics, handball, judo, soccer, table tennis, triathlon and volleyball. Second, nine sequential discriminant analyses were used to assess the ability of a set of relevant performance characteristics classifying participants and non-participants for the respective sports. Discriminant analyses resulted in a 96.4% correct classification of all participants for the nine different sports. When focusing on relevant performance characteristics, 80.1% to 97.2% of the total test sample was classified correctly within their respective disciplines. The discriminating characteristics were briefly the following: flexibility in gymnastics, explosive lower-limb strength in badminton and volleyball, speed and agility in badminton, judo, soccer and volleyball, upper-body strength in badminton, basketball and gymnastics, cardiorespiratory endurance in triathletes, dribbling skills in handball, basketball and soccer and overhead-throwing skills in badminton and volleyball. The generic talent characteristics of the FSC enable the distinction of adolescent boys according to their particular sport. Implications for talent programmes are discussed.