Book Signal on THE SIX SIGMA APPROACH. INTERPRETATIONS, CONTROVERSIES, PROCEDINGS ("ABORDAREA SASE SIGMA. INTERPRETARI, CONTROVERSE, PROCEDURI") by Alexandru ISAIC-MANIU and Viorel Gh. VOD Editura Economica, Bucharest, 2008

The “Six Sigma” concept in quality control has been widely extended and encouraged in the last few years. A simple Google search gives almost 6 million results. However, in Romanian, the same search gives much fewer results (little over 3000); among the first listed results, we can find references about the two authors of this volume, which reveals the preoccupations that Viorel Gh. Voda (doctor in mathematics since 1977) as well as Alexandru Isaic-Maniu (doctor in economics since 1977) constantly and systematically have been having along their entire careers in the research of quality.