Testing is the process of evaluating a system or its component(s) with the intent to find that whether it satisfies the specified requirements or not. Testing is executing a system in order to identify any gaps, errors or missing requirements in contrary to the actual desire or requirements.
Software testing is the process of evaluation a software item to detect differences between given input and expected output. Also to assess the feature of A software item. Testing assesses the quality of the product. Software testing is a process that should be done during the development process. In other words software testing is a verification and validation process.
In the software testing, there are two basic of testing or testing methods.
- Black-Box testing
- White-Box testing
Black box testing is often used for validation and white box testing is often used for verification.
Black box testing is a testing technique that ignores the internal mechanism of the system and focuses on the output generated against any input and execution of the system. It is also called functional testing.
White box testing is a testing technique that takes into account the internal mechanism of a system. It is also called structural testing and glass box testing.