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1.
Testing is a standard method for verification of software performance.Producing efficinet and appropriate test case is an important aspect in testing.Specification-based testing presents a method to derive test data from software specification.Because of the precision and concision of specification.the test data derived from specification can test the software efficiently and entirely.This paper demonstrates a test class framework(TCF) on a file reading case study,specifiec using Z notation,This class framework defines test case sets,providing structure to the testing process.Flexbility is preserved so that many testing strategies can be used.  相似文献   

2.
对软件测试建立动态运行模型,提出基于逻辑统计特征描述的软件测试方法。通过软件运行的统计特征对软件运行状态在可行域中的风险进行评估,从而得到软件测试的一个量化安全指标。最后从工程角度提出了有现实意义的软件测试框架,并从数学上证明了该框架的有效性。有一个隐含前提,就是程序应该是实际系统的拟合,程序功能模块的划分对实际系统所具有的逻辑约束与自身稳定性不构成破坏。  相似文献   

3.
Recent changes to educational policy which have focused attention on the use of high stakes testing as performance and accountability measures have renewed interest in test anxiety both in the UK and the USA. The aim of this paper is to provide a critical examination of the test anxiety construct, and explore the ways in which test anxiety is written about and conceptualised in the existing literature. It is intended that this paper would provide a companion to the comprehensive reviews that already exist, to provoke scholarly thought and debate around the existing literature, than to provide an additional review. Discussion is based around five themes: (1) how test anxiety is differentiated from the anxiety construct in general; (2) the differing conceptions of test anxiety in the literature; (3) the relationship between test anxiety and other, related constructs; (4) how measurement concerns have driven development of the test anxiety construct; and (5) the focus on worry and performance deficits leading to definitional problems. Two directions for future work are highlighted: first, to continue the exploration of test anxiety with other related constructs; and second, to develop qualitative approaches to the study of test anxiety.  相似文献   

4.
Building an abstract model of the web application is the chief task of software test based on model, which is an efficient way for testing the web application. One problem with current web application test technologies is the lack of tools for modeling the whole web software, especially the lack of support for describing web application from the view of action and function. This paper is concerned with providing the support for development and test of the web application. The presented novel model, named component-based and tree-oriented web application development model (CBTOWADM), abstracts the web application as a tree based on its system function and business process. CBTOWADM not only simplifies the design and development of the web application, but also acts as the model middleware for software test. The basic model definition, the system framework and the application in software test of CBTOWADM is described.  相似文献   

5.
工程测试技术是一门实践性很强的专业课,水下武器系统专业具有很强的专业特色,该文研究并提出了具有水下武器系统专业特色的测试技术教学实验室的建设方案。  相似文献   

6.
A novel test access mechanism (TAM) architecture with multi test-channel (TC) based on IEEE Standard 1500 is proposed instead of the traditional sub-TAM structure. The cost model of an area-time associated test and the corresponding lower bound of system-on-chip (SoC) test time are established based on this TAM architecture. The model provides a more reliable method to control the SoC scheduling and reduces the complexity in related algorithm research. The result based on the area time associated test cost model has been validated using the ITC’02 test benchmark.  相似文献   

7.
胡先智  梁艳 《南昌教育学院学报》2011,26(2):192+196-192,196
测试用例的数量和质量决定软件测试的成本和有效性。在G算法和H算法的基础上,引入测试用例-测试需求映射关系重要性度的概念,本文提出了一种测试用例集最小化生成算法。该算法用于简化三角形分类程序的测试用例集,简化后的测试用例集是最小的测试用例集。实例分析证明该算法是有正确、有效的。  相似文献   

8.
软件质量控制是通过"评审"和"测试"这类质量控制活动来消除软件产品中的缺陷,交付给用户一个高质量的软件。基于软件能力成熟度模型第4级中的定量管理要求,在仔细研究了软件质量控制活动的分类,度量和流程后,提出了软件质量控制活动过程管理。应用该过程管理可以设计质量控制活动管理系统。  相似文献   

9.
发动机机体疲劳试验与应力测量   总被引:1,自引:0,他引:1  
民用柴油机机体的结构可靠性已逐渐成为人们关注的热点。对某一型号民用柴油机机体安装应力和静态应力测量及疲劳试验进行分析研究,结合已完成的有限元应力场与变形场的计算分析,得出该机型在增压下的机体结构可靠性满足使用要求。  相似文献   

10.
11.
Abstract

College students with attention-deficit/hyperactivity disorder (ADHD) and/or learning disabilities are frequently allowed to complete examinations in a separate, distraction-reduced setting. Although separate room test accommodations are believed to provide students with equal access to testing and thereby improve performance, little experimental research has examined their effects on actual test scores. We randomly assigned college students to complete a high-stakes Spanish language placement examination in either a group or separate room setting. Then, we categorized students based on their (1) disability status, (2) history of test accommodations, and (3) self-reported history of test anxiety. Results showed a significant setting x disability status interaction. Contrary to expectations, all students performed equally well in the group setting, but students with disabilities earned significantly lower scores than their classmates without disabilities when tested in a separate room. Similar results were found when we restricted our analyses to students with a history of test accommodations. Separate room testing had no effect on the scores of students with test anxiety. Altogether, our findings suggest that separate room testing does not mitigate the effects of ADHD, learning disabilities, and/or test anxiety on performance and, in some cases, may actually lower test scores.  相似文献   

12.
依据教育测量学讨论了试卷质量分析的定量指标,并提出一种基于MATLAB软件的试卷分析方法。EXCEL强于图文表处理而MATLAB则有着强大的数学计算能力。通过EXCEL LINK将EXCEL中的原始数据发送到MATLAB中完成试卷的深度分析与处理。借助MATLAB强大的数据处理能力可极大的减轻试卷分析的难度,从而为教师及教学管理人员进行试卷的自动统计分析带来极大的方便,并给出了具体的实例代码。  相似文献   

13.
Test fairness and test bias are not synonymous concepts. Test bias refers to statistical evidence that the psychometrics or interpretation of test scores depend on group membership, such as gender or race, when such differences are not expected. A test that is grossly biased may be judged to be unfair, but test fairness concerns the broader, more subjective evaluation of assessment outcomes from perspectives of social justice. Thus, the determination of test fairness is not solely a matter of statistics, but statistical evidence is important when evaluating test fairness. This work introduces the use of the structural equation modelling technique of multiple-group confirmatory factor analysis (MGCFA) to evaluate hypotheses of measurement invariance, or whether a set of observed variables measures the same factors with the same precision over different populations. An example of testing for measurement invariance with MGCFA in an actual, downloadable data set is also demonstrated.  相似文献   

14.
INTRODUCTION Structural damage detection technique addresses the problem of how to locate and detect damage that occurred in a structure by using the observed changes of its dynamic and static characteristics. In recent years, damage assessment of structure has drawn wide attention from various engineering fields. Gen-erally, the existing approaches proposed in this area can be clarified into two major categories: the dy-namic identification methods using dynamic test data and the static …  相似文献   

15.
为了更好地分析测试基于组件的Web应用,并抉择何时结束测试过程,提出了覆盖率准则的概念和测试需求约简的方法.首先,定义了4种覆盖率准则,并证明它们之间的包含关系.然后,使用一种转换算法将Web应用测试模型转换成一种可以约简测试需求集合的Web应用决策-决策图(WADD图).最后,基于各种覆盖率准则,并通过分析图中各条边的等价和包含关系,约简测试需求集合.测试人员可以根据不同的测试环境需求选择不同测试需求集合.案例分析表明,在实际的Web应用中所定义的覆盖率准则确实存在线性包含关系.基于不同的测试覆盖率准则,测试需求集合平均可约简55%以上.随着覆盖率准则复杂度的提高,测试需求的规模也随之增大.  相似文献   

16.
该测试工具用于在局域网内部对路由器相关的软件/硬件进行调试测试。待路由器测试性能稳定后,方可进入主干网进行工作。软件共分为三大部分:调试测试平台、控制台及帧分析。本文简要陈述了测试工具软件的系统设计。深入探讨了控制台部分中命令解释器的设计全过程以及最后测试通过。  相似文献   

17.
外语测试不仅运用于外语教学过程中 ,而且被社会广泛地用作衡量外语能力的手段 ,测试结果成为评估外语能力最重要的参考指数。外语语言能力是一个复杂的、多层面的概念。外语测试结果受语言能力、策略能力、测试方法、个性等多方面因素的影响。为了确保测试结果较准确地反映被试掌握的外语知识 ,客观地衡量其外语水平 ,设计试题和测试方法时 ,应该充分考虑其有效性、可靠性  相似文献   

18.
To evaluate the columnar jointed basalts in the dam site of Baihetan hydropower station in southwest China, we developed a basic conceptual model of single jointed rock mass. Considering that the rock mass deformation consists of rock block deformation and joints deformation, the linear mechanical characteristics of the cell (including the elastic joints and the nonlinear mechanical behaviors of the cell) with a combined frictional-elastic interface were analyzed. We developed formulas to calculate the rock block deformation, which can be adapted for multiple jointed rock mass and columnar jointed basalts. The formulas are effective in calculating the equivalent modulus of multiple jointed rock mass, and precisely reveal the anisotropic properties of columnar jointed basalts. Furthermore, the in situ rigid bearing plate tests were analyzed and calculated, and the types of loading-unloading curves and the equivalent modulus along different directions of columnar jointed basalts were obtained. The analytical results are in close compliance with the test results.  相似文献   

19.
As the appearance of local dimming technique, the current existing test methods are not suitable for testing the power consumption of the LCD TVs using the local dimming technique any longer. A test method appropriate to LED backlight LCD TVs using the local dimming technique is proposed in this paper, and then the test software is developed. The results demonstrate that the test software developed can show the real average power consumption of the LCD using local dimming technique, and by normalization the power consumption become comparable for not only local dimming LCD TVs but global dimming LCD TVs. Using the software developed in this paper, the ratio of power saving is clear when an LCD TV using the local dimming technique compared with one without local dimming technique.  相似文献   

20.
通常软件的不同行为和不同结构需要用不同的模型进行描述。文章提供了一种面向测试对象的测试系统框架模型.即结构模型和计算模型两部分。  相似文献   

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