数据驱动技术在WRSAFS中的研究与应用

本文以自动化测试过程中应用数据驱动时遇到的问题为切入点,提出了一种更为先进的数据驱动技术并与自动化测试框架WRSAFS(Win Runner Software Automation Framework Support)相结合,重点分析了数据驱动技术在WRSAFS中的应用及相互关系。借助实际被测试软件,应用此技术设计测试用例并取得了很好的效果。     

Xilinx XC4000系列FPGA自动测试平台搭建

随着FPGA的发展,FPGA测试技术也得到了相应的发展。因为FPGA的结构和传统专用集成电路(ASIC)有着本质的区别,在FPGA中不能形成可测性设计电路,但它的可编程能力决定了其测试电路可以通过编程的方法来实现。本文讨论了Xilinx XC4000系列FPGA中CLB资源和互连资源的自动测试方法。而且提出了一种新的测试资源坐标定位方法,使得由软件仿真向器件真实测试取得了突破。并搭建了硬件测试平台。     

An extension of likelihood-ratio-test for testing linear hypotheses in the baseline-category logit model

A new family of test statistics for testing linear hypotheses in baseline-category logit models is introduced and its asymptotic distribution is obtained. The new family is a natural extension of the classical likelihood ratio test. A simulation study is carried out to find new test statistics that offer an attractive alternative to the classical likelihood ratio test in terms of both exact size and exact power.     

Fourier methods for testing multivariate independence

Recently a power study of some popular tests for bivariate independence based on ranks has been conducted. An alternative class of tests appropriate for testing not only bivariate, but also multivariate independence is developed, and their small-sample performance is studied. The test statistics employ the familiar equation between the joint characteristic function and the product of component characteristic functions, and may be written in a closed form convenient for computer implementation. Simulations on a distribution-free version of the new test statistic show that the proposed method compares well to standard methods of testing independence via the empirical distribution function. The methods are applied to multivariate observations incorporating data from several major stock-market indices. Issues pertaining to the theoretical properties of the new test are also addressed.     

Computer-based testing: An alternative for the assessment of Turkish undergraduate students

Virtually errorless high speed data processing feature has made computers popular assessment tools in education. An important concern in developing countries considering integrating computers as an educational assessment tool before making substantial investment is the effects of computer-based testing on students’ test scores as compared to paper-and-pencil tests. This study investigated whether test scores of Turkish students were different in the computer-based test and in the paper-and-pencil test, with forty-seven undergraduate students studying at a public university located in the Blacksea region of Turkey. Findings of this study showed that test scores of undergraduate students were not different in the computer-based test and in the paper-and-pencil test which led us to reach the conclusion that computer-based testing can be considered as a promising alternative technique for the undergraduate students in Turkey.     

Some problems of computer-aided testing and “interview-like tests”

Computer-based testing – is an effective teacher’s tool, intended to optimize course goals and assessment techniques in a comparatively short time. However, this is accomplished only if we deal with high-quality tests. It is strange, but despite the 100-year history of Testing Theory (see, Anastasi, A., Urbina, S. (1997). Psychological testing. Upper Saddle River, NJ: Prentice-Hall) there still exist some misconceptions. Modern wide-spread systems for computer based course management and testing reveal a set of problems corresponding to certain features of testing methods.     

Small sample improvements in the threshold cointegration test using residual-based moving block bootstrap

A residual-based moving block bootstrap procedure for testing the null hypothesis of linear cointegration versus cointegration with threshold effects is proposed. When the regressors and errors of the models are serially and contemporaneously correlated, our test compares favourably with the Sup LM test proposed by Gonzalo and Pitarakis. Indeed, shortcomings of the former motivated the development of our test. The small sample performance of the bootstrap test is investigated by Monte Carlo simulations, and the results show that the test performs better than the Sup LM test.     

基于切片技术获取系统测试用例的方法

针对如何获取局部和全部的系统测试用例,确保其正确性和完备性以及与需求的一致性问题,提出利用先进的建模技术,建立可模拟验证的过程模型,并应用切片技术获取测试用例,并利用基于过程模型结构分析的归纳法证明了该法的正确性,根据过程模型切片准则获取系统测试用例的算法,介绍了实现工具的构成和应用实例。     

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UML顺序图测试用例的生成

在分析UML模型可测试性的基础上,提出一种基于UML顺序图模型生成分布式系统测试用例方法,以系统软件配置项为对象对分布式应用典型场景进行模拟,通过解析MDL文件给出对顺序图XML的建模方案,实现一个自动生成分布式系统测试用例工具。实验结果表明,生成的测试用例达到判定覆盖的标准,具有良好的应用前景。