The document defines marketing information systems (MkIS) and discusses their key components and functions. MkIS are defined as formal systems that regularly collect, analyze, and distribute pertinent, timely and accurate information to marketing decision-makers. They comprise both computerized and non-computerized elements that assist various marketing management processes. Effective MkIS rely on people, procedures, and the latest information technologies to generate an organized flow of information that enables solving problems and making well-informed marketing decisions.