The document discusses the importance of management information systems (MIS) for observing the external environment and satisfying customer needs. It explains that MIS involves collecting, organizing, analyzing, and distributing timely and accurate information to marketing decision makers. The document also lists several methods that can be used to gather customer intelligence, such as training salespeople to report new developments, motivating distributors to share information, networking externally, setting up an advisory panel, using government data, and purchasing external data.