Software Testing Exam Study Blog For The BCS ISEB-ISTQB Certification

What is Software Performance Testing? Performance is an indicator of how well a software system or component meets its requirements for timeliness. There are two important dimensions to software performance timeliness, responsiveness and scalability. Responsiveness is the ability of a system to meet its objectives for response time or throughput. The response time is the time required to respond to stimuli (events). The throughput of a system is the number of events processed in some interval of time. Scalability is the ability of a system to continue to meet its response time or throughput objectives as the demand for the software function increases software performance testing is the single most important quality performance testing services attribute after functionality that can make or break your mission critical business application, as 85% of the customers agree with this fact. Requirement and specifications in Performance testing Performance requirements must be provi...

Why Performance Test? As the name suggests, performance testing is all about testing the speed, reliability, and efficacy of devices, networks, programs, and hardware. In the case of user-interfaces, it may also apply to the ease-of-use or navigability. Regular testing helps determine whether devices are working at peak speed and also utilizing resources optimally. For this reason, the process of performance testing can be a comprehensive one, involving several functions across the area or device that is to be tested for its performance. Performance testing thus, is not limited to a specific function or component, but has to be conducted across systems, at times in conjunction with other functions as well. Performance testing may also refer to testing of human performance. It is easier to understand performance testing in this context: it is not so much about individual components performing; but about the final outcome of all the parts coming together to perform a single task. ...

What is Stress Testing? At this point the peak load conditions are identified by the tester at which the particular program would simply tend to fail processing loads within the given time period. At this time most of the designers simply design all of the case scenarios in order to find out if the particular system meets all of the performance criteria. Tester simply tries to determine the capacity of the system that is tested. Most of the stress test or even load test as it is known will only occur if the system has delivered enough of the application. So the earlier these tests are performed the earlier all the defects of the system can be stated and rectified. It certainly is very difficult to detect most of these defects as most of them would certainly require architectural changes which may not be possible in al of the cases. Most of these tests simply depend on the functional interface and it certainly would be wise enough to delay testing till you have a predefined level...