Decision-makers in companies do not need an overload of information, but rather decision support. The support of decisions through efficient information provision is increasingly becoming a prerequisite for successful corporate management and the organization's adaptability to changing markets. More than ever, information systems are needed that distill corporate activities to the essentials. Signal systems are required that alert when critical levels are reached and provide alternatives for action to open sluices and flood catchment basins. New information technologies enable new concepts for management support systems that meet these requirements. The book is primarily a contribution from practitioners for practitioners. The numerous examples from various industries illustrate that management support systems are already being successfully utilized today.