This book closes the gap between information technologies and management decision making. It treats currently relevant topics in information technologyknowledge-based expert systems, graphic-user interface, fuzzy logic, neural networks, data storage, client server, and integration of heterogeneous databasesby using examples and, more importantly, by relating these methods to the needs of the decision maker by taking into account the individual's decision style. The authors provide a solid basis for determining how decision makers use and access information that becomes part of the design of information systems. Integrating the decision maker into the design results in a more intelligent information system because the focus is on the outcome rather than on the methodology or computer power used.