Accelerated Testing for Software Reliability Assessment
نویسنده
چکیده
It is necessary to assess the reliability of safety-critical systems to a high degree of confidence before they can be used in the field. One theoretically sound approach for assessing software reliability is to use statistical sampling according to the operational profile. However, this method requires a prohibitive amount of testing. To make this approach more feasible, it is necessary to reduce the time needed to execute a test case. In this paper, we develop transformation methods that speed up the execution of each test case so that a large number of test cases can be run in a shorter time.
منابع مشابه
Software reliability assessment using accelerated testing methods
The use of operational pro®les and usage-based testing has received considerable attention recently in the software engineering literature. Testing under the actual operational pro®le can, however, be expensive, time consuming or even infeasible in situations where the performance of a system is dominated by infrequent but highly critical events. We consider a real application that deals with t...
متن کاملDesign of Accelerated Life Testing Plans for Products Exposed to Random Usage
< p>Accelerated Life Testing (ALT) is very important in evaluating the reliability of highly reliable products. According to ALT procedure, products undergo higher stress levels than normal conditions to reduce the failure times. ALTs have been studied for various conditions and stresses. In addition to common stress such as temperature and humidity, random usage can also be considered as anoth...
متن کاملCONSTANT STRESS ACCELERATED LIFE TESTING DESIGNWITH TYPE-II CENSORING SCHEME FOR PARETO DISTRIBUTION USING GEOMETRIC PROCESS
In many of the studies concerning Accelerated life testing (ALT), the log linear function between life and stress which is just a simple re-parameterization of the original parameter of the life distribution is used to obtain the estimates of original parameters but from the statistical point of view, it is preferable to work with the original parameters instead of developing inferences for the...
متن کاملStatistical Tools for the Rapid Development & Evaluation of High-Reliability Products
Today's manufacturers face increasingly intense global competition. To remain pro table, they are challenged to design, develop, test, and manufacture high reliability products in ever-shorter product-cycle times and, at the same time, remain within stringent cost constraints. Design, manufacturing, and reliability engineers have developed an impressive array of tools for producing reliable pro...
متن کاملDesign and Analysis of Step Stress Accelerated Life Tests for Censored Data}
Life testing often is consuming a very long time for testing. Therefore, the engineers and statisticians are looking for some approaches to reduce the running time. There is a recommended method for reducing the time of failure, such that the stress level of the test units will increase, and then they will fail earlier than normal operating conditions. These approaches are called accelerated li...
متن کامل