Please enjoy the following guest post by Abhinav Vaid.
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Performance Testing was always a part of Software Testing whether explicitly stated or not. The world of software testing is becoming smarter and mature. With the changing landscape of Computing and a paradigm Industry wise shift towards SOA/web based applications has brought a forefront focus on Performance Testing and the expectations saught from this kind of testing are measurable numbers. I have tried to extract the entire essence in terms of minimal words which could serve the purpose to cut-short the learning time. Performance Testing is about to measure the performance of an application under test whether the application is an embedded, desktop or a distributed enterprise application. However, these are the enterprise based applications/architectures where lies the prime focus of performance testing. Expectations saught from AUT is to measure the performance numbers and ensuring that it conforms to the expectations.