Job enlargement involves increasing the number of tasks associated with a job, in order to increase the variety of work. This approach is most successful when the added tasks require an employee to increase her knowledge level. For example, a worker on a production line can also be tasked with conducting a quality review on her work. The outcome of job enlargement can be a workforce that is capable of engaging in a broad variety of tasks, including filling in for each other. Given their broader capabilities, employees with enlarged jobs may also qualify for higher rates of pay.