Feedback is 1) an information of opinion or interest expression about a new product or service; 2) the responding process that makes it deviate from its initial state.
Reference Definition by ISO: The term feedback is used to refer to a comment or an opinion expressed about a product or service or an interest expressed in a product or a service. It may also be used to refer to the customer complaints-handling process itself.
Related Definitions in the Project: The Project Management
