Job rotation is a management technique that assigns trainees to various jobs and departments over a period of a few years.
A job design technique in which employees are moved between two or more jobs in a planned manner. The objective is to expose the employees to different experiences and wider variety of skills to enhance job satisfaction and to cross-train them.
-------BusinessDictionary.com
Job rotation implies systematic movement of employees from one job to the other. Job remains unchanged but employees performing them shift from one job to the other. With job rotation, an employee is given an opportunity to perform different jobs, which enriches his skills, experience and ability to perform different jobs