Application Testing is an activity that every software tester performs daily in his career. These two words are extremely broad in practical aspect. However, only the core and most important areas will be discussed here. The purpose of this article is to touch all the primary areas so that the readers will get all the basic briefing at a single place.

For desktop applications, testing should take into account the UI, business logic, database, reports, roles and rights, integrity, usability and data flow. For web applications, along with all these major areas; testers should give sufficient importance to performance, load and security of the application.

According to the best of our knowledge, there are at least 50 testing tools available in market today. These include both paid and open source tools. Moreover, some tools are purpose specific e.g. UI testing, Functional Testing, DB Testing, Load Testing, Performance, Security Testing and Link validation testing etc. However, some tools are strong and provide the facility of testing several major aspects of an application. The general concept of ‘Application Testing’ is its functional testing. So, our focus will be on functional testing tools.

Different vendors provide some specific features that make their product unique to other competitor products. But the five features listed above are the most common and can be found in almost all the functional testing tools.

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