It is easy for anyone who takes a look at the quality literature to note the absence of consensus in quality definition. In this article, we try to answer two questions. First one: which definition is the best? To compare and judge, we propose four criteria of “good quality definition”, and then, we list different definitions and enumerate the major existent classifications in the literature. The most important critics formulated are also listed. | Towards a new definition of quality identification of the best existent definition and agenda for future research International Journal of Management IJM Volume 7 Issue 6 September October 2016 66 Article ID IJM_07_06_007 Available online at http ijm JType IJM amp VType 7 amp IType 6 Journal Impact Factor 2016 Calculated by GISI ISSN Print 0976-6502 and ISSN Online 0976-6510 IAEME Publication TOWARDS A NEW DEFINITION OF QUALITY IDENTIFICATION OF THE BEST EXISTENT DEFINITION AND AGENDA FOR FUTURE RESEARCH SAHIB Amal-Oudiî JEBLI Samir and BOUAZIZ Abdelhaq Laboratoire de Mécanique Productique et Génie Industriel Ecole Supérieure de Technologie de Casablanca Hassan II University of Casablanca BP 8012 Oasis Casablanca Morocco. ABSTRACT It is easy for anyone who takes a look at the quality literature to note the absence of consensus in quality definition. In this article we try to answer two questions. First one which definition is the best To compare and judge we propose four criteria of good quality definition and then we list different definitions and enumerate the major existent classifications in the literature. The most important critics formulated are also listed. Finally we balance between listed definitions in order to get the best one that meets the four criteria. The second question concerns the direction which should be taken for new research. Consumption of goods and services is directly related to consumer behavior. The 2008 s financial crash has led changes in this behavior during and after the crisis. We believe that any new research should take into consideration these changes and mix it with a questioning of the relationship between business and consumer. Key words Quality definition choosing criteria classification best definition consumer behavior. Cite this Article SAHIB Amal-Oudiî JEBLI Samir and BOUAZIZ Abdelhaq Towards a New Definition of Quality Identification of the Best Existent .