The book is the result of an impressive joint venture of Iberian-American universities and research institutions organized by Project Eureka. The main goal of the Eureka-Iberian-American network was to support the development of an appropriate technology for discovering strategically useful knowledge for Latin-American organizations.The book includes twenty six papers which all together are concerned with Business Intelligence in the broad sense, i.e. Explorative Data Analysis ("data mining"), Knowledge Discovery and Storing based on ontologies (systematics) and Management as well as Decision Making. There is one characteristic which makes the book quite specific. It is its inter-disciplinary approach. Consequently, the interested reader will find a lot about imprecision, uncertainty, and Fuzzy Logic almost accompanied by interesting case studies of Business Intelligence taken from various domains.