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The book, related to Six Sigma, it is written for Managers, for Students (aiming at becoming Future Managers), for Young Researchers (aiming at becoming Scientific Researchers), for Scholars (aiming at learning Scientific ideas), and for Professors who want to learn the BASICS of Decisions based on the Scientific Analysis of Data collected by suitable Designed Experiments in order to make Quality Decisions in their work of practical Research, Theoretical Research and Management. It aims at showing in details the several aspects related to the Six Sigma, showing that the GIQA [which comprises Quality Management, Reliability, Availability, Maintenance, Spare Parts Management, Analysis and Design Of Experiments (DOE)], is better because only good methods are crucial for suitable decision taking. Wrong cases are presented to show the Scientific Methods to solve them, in order to avoid being cheated in own work and duty. The author has more forty years´ experience in the Quality Field and its Methods. Quality Methods are important for managing DOE, Reliability, Maintenance, Spare Parts and provide great advantage to Companies dealing with such fields.

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F. GALETTO (Sanguinetto Italy, 42) Electronics Eng&Mathematics degrees (Bologna Un. 67&73), Industrial Quality Management Prof (Turin Politecnico 92-2012). Reliability Manager [General Electric 69-71, Siemens 71-85, Fiat 75-82], Quality Director (Philco 83-85/IVECO 85-90) Teaching Quality for 50 years provided Quality Methods for Quality Decisions.

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