ELI5: Explain Like I'm 5

Redundancy (total quality management)

Redundancy in total quality management is when a business does something more than once or repeatedly to make sure things are done properly, and to make sure that mistakes or errors are noticed and corrected. An example would be if a business had someone double-check a customer order to make sure that the customer got the correct order. Another example would be if a business asked customers to fill out a survey about their experience to make sure customer service was good. By doing both of these things, the business is making sure that customer orders are correct and customers are happy, which helps to improve the quality of the business.