Companies use such customer insights to develop competitive advantage.
To gain good customer insights, marketers must effectively manage marketing information from a wide range of sources.
The real value of marketing research and marketing information lies in how it is used—in the customer insights that it provides.
Customer insights groups collect customer and market information from a wide variety of sources.
A marketing information system (MIS) consists of people and procedures for assessing information needs, developing the needed information, and helping decision makers to use the information to generate and validate actionable customer and market insights. (Figure below)

ASSESSING MARKETING INFORMATION NEEDS
A good marketing information system balances the information users would like to have against what they really need and what is feasible to offer.
Sometimes the company cannot provide the needed information, either because it is not available or because of MIS limitations.
By itself, information has no worth; its value comes from its use.

