The Marketing Information System refers to the systematic collection, analysis, interpretation, storage and dissemination of the market information, from both the internal and external sources to the marketers on a regular, continuous basis.

Marketing Information System (MIS) is a permanent arrangement (system or setup) for provision of regular availability of relevant, reliable, adequate, and timely information for making marketing decisions.

The marketing information system distributes the relevant information to the marketers who can make the efficient decisions related to the marketing operations viz. Pricing, packaging, new product development, distribution, media, promotion, etc.

Every marketing operation works in unison with the conditions prevailing both inside and outside the organization, and, therefore, there are several sources (viz. Internal, Marketing Intelligence, Marketing Research) through which the relevant information about the market can be obtained.

Philip Kotler: “A marketing information system is a continuing and interacting system of people, equipment’s, and procedures to gather, sort, analyze, evaluate, and distribute the pertinent, timely, and accurate information for use by marketing decision-makers to improve their marketing planning, implementation, and control.” Philip Kotler gives alternative definition, such as: “A marketing information system (MIS) consists of people, equipment’s, and procedures to gather, sort, analyze, evaluate, and distribute the needed, timely, and accurate information to marketing decision makers.”