Manuel testler are a type of assessment used in various fields, particularly in software development and quality assurance. They involve manually executing test cases to ensure that a system or application functions as intended. Testers interact with the software directly, checking for bugs, usability issues, and overall performance. These tests are crucial for identifying problems that automated tests might miss. Manual testing allows for a more human perspective, as testers can evaluate the user experience and provide feedback on the interface. This process helps improve the quality and reliability of software products before they are released to users.