The Exit interview is a part of the off-boarding process, which is conducted when an employee leaves the organization.
In the employee exit interview, the HR department should be conducting that, the viewpoints of the leaving employee are taken into account for reputation and improvement purpose(s). Moreover, this should not be confused with the climate survey, however, Exit interviews are important for any conditions which may be the reason for leaving an employee in any case like resigning from a job, termination, switching and etc. Those conditions should be looked into seriously to avoid further HR Turnover. Not only for the employees leaving the Organizations but at the same time the word of mouth, either positive or negative, travels to other surroundings and organizations when a leaving employee joins any other concern in the future. Therefore, exit interviews are referred to as to be vitally conducted for good enough reasons.
Related: Turnover (Employee Turnover)