When it comes to software testing, there are different approaches that can be utilized to ensure the quality and reliability of a product. These approaches are often categorized as black-box testing, white-box testing, and grey-box testing. Black-box testing is a method where testers examine the functionality of an application without having any knowledge of its internal code structure. Testers focus on inputs and outputs to verify if the software behaves as expected. This approach simulates how end users interact with the software. White-box testing, on the other hand, involves examining the internal workings of an application’s code. Testers have access to the source code and use this information to create test cases that target specific paths within the program. This approach is also known as clear box or glass box testing. Grey-box testing combines elements of both black-box and white-box testing. Testers have partial knowledge of the internal code structure and use this information to design comprehensive test scenarios. By leveraging insights from both perspectives, grey-box testing aims to uncover potential issues in a more holistic manner.