The Closed Loop Marketing approach measures the results of marketing and communication initiatives by tracking the response of targeted groups. The results of responses, such as completed surveys, promotional entries, coupon redemptions and purchase behavior, are added to a database for tracking and evaluation to improve future marketing decisions. Marketing campaigns can then continuously adapt to the customers' wants and needs, creating a true relationship. Simply put: It allows marketers to develop, and monitor highly targeted strategic campaigns based on a wide variety of customer histories and behaviors.