The document discusses a marketing information system (MKIS) and provides details about its key components and functions. It begins with definitions of basic marketing concepts. It then explains that an MKIS gathers data, develops information from various sources, and distributes output to aid strategic and operational marketing decisions. The document also outlines the system development life cycle for an MKIS, including preliminary investigation, feasibility study, requirement analysis, system design, and testing. It provides examples of structured analysis tools like data flow diagrams and a data dictionary.