In which situation is exploratory testing most suitable?

Exploratory testing is particularly suitable in scenarios where there is significant time pressure on testing. In cases where time is limited, exploratory testing allows testers to use their skills, experience, and intuition to investigate the application without being constrained by extensive documentation or predefined test scripts. This approach enables quick adaptation and focus on areas that might be more susceptible to defects, facilitating rapid feedback and higher coverage in a shorter time frame.

While advanced documentation and clearly specified requirements are beneficial for more structured testing approaches like scripted testing, exploratory testing thrives in situations where flexibility and creativity can help address time constraints. Likewise, when testers lack knowledge of similar applications, exploratory testing can still be effective as it encourages exploration and learning about the application on the spot. However, time pressure is a primary driver for choosing exploratory testing, as it promotes an efficient and effective way to uncover issues swiftly.