The aim of this investigation into test smells was to find out how familiar developers are with test smells, the frequency of test smells and their severity in the industrial world. First of all, a taxonomy of different test smells was created and grouped according to programming principles as a basis for this study. Several interviews were then conducted to find out which test smells to includ...

BACKGROUND Diagnostic laboratory tests are routinely defined in terms of their sensitivity, specificity, and ease of use. But the actual clinical impact of a diagnostic test also depends on its availability and price. This is especially true in resource-limited settings such as sub-Saharan Africa. We present a first-of-its-kind report of diagnostic test types, availability, and prices in Kampal...

The 2006 American Community Survey (ACS) Content Test is a large household sample survey (over 60,000) designed to test proposed changes to the ACS questionnaire for 2008. The original base sample design is a stratified primary sample unit design that builds on the sample design of an earlier survey, the Census 2000 Supplementary Survey. In response to changing field requirements, several chang...

One of the major quality criteria of a software system is how well it fulfils the needs of users or customers. One technique to verify and improve the grade of fulfilment is system testing. System test cases might be derived from the requirements of the system under test. This paper presents the results of a survey among 13 approaches to drive the generation of test cases from functional requir...

Regression testing is the activity of retesting a program so as to ensure that no new errors have been introduced into the previously tested code. However this activity does not involve rerunning the entire test suite but selecting only a few test cases that exercise the changes. Suppose there is a program P and P’ is it’s modified version. The regression test suite so selected must be able to ...

A common problem in object-oriented software integration testing is to determine the order in which classes are integrated and tested. In this paper, we first overview some related work based on their objectives in current literature and then provide some analysis and evaluation.

Studies show that large software projects have a huge likelihood of failure. In fact, it’s more likely that a large software application fails to meet its requirements on time and on budget due to lack of quality in design or implementation or testing. The success of such software, however, can be improved by modeling. Model-Based test case generation approaches inspire developer to improve des...

BACKGROUND Ghana has not conducted a national tuberculin survey or tuberculosis prevalence survey since the establishment of the National Tuberculosis Control Programme. The primary objective of this study was therefore to determine the prevalence of tuberculin skin sensitivity in Ghanaian school children aged 6-10 years in 8 out of 10 regions of Ghana between 2004 and 2006. METHODS Tuberculi...

The Hosmer-Lemeshow goodness of fit test is w ell known when data are obtained from a simple random survey. The procedure involves grouping of the observations based on the expected probabilities and then testing the hypothesis that the difference between observed and expected events is simultaneously zero for all the groups. We consider the weighted analog of the hypothesis and propose a test ...