Manual testing, also known as live testing, is a process where human testers perform tests on an application to validate its functionality, user experience, and other aspects. This approach differs from automated testing, which relies on software automation tools to execute test scripts. Manual testing is suitable for evaluating user experience, exploratory testing, and low-risk functionality that does not require frequent testing. However, it comes with a higher risk of errors due to human involvement. Automated testing, on the other hand, is ideal for unit and integration tests, performance and load testing, but requires specialized skills and upfront investment in setup and script development. Organizations can benefit from using both manual and automated testing strategies, depending on their specific needs and application requirements.