Data analysis and decision support

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It is a great privilege to write a foreword for a book honoring Wolfgang Gaul on his sixtieth birthday. Currently a Professor of Business Administration and Management Science and Head of the Institute of Decision Theory and Management Science at the University of Karlsruhe (TH), Germany, Wolfgang Gaul is one of the most distinguished scholars in the world today. He has played a crucial role in leading research initiatives and has excelled in fostering communication among researchers across diverse disciplines globally. Notably, his work spans various research areas, including graph theory, network models, reliability theory, stochastic optimization, operations research, probability theory, sampling theory, cluster analysis, scaling, and multivariate data analysis. His contributions extend beyond theoretical topics to practical applications of statistical and mathematical tools in significant fields such as computer science (e.g., data mining), business research (e.g., market segmentation), management science (e.g., decision support systems), and behavioral sciences (e.g., preference measurement). All his endeavors reflect the highest level of professional excellence.