Journal of Information & Systems Management Zineb Bougroun, Adil Zeaaraoui, M.G. Belkasmi, T. Bouchentouf 2 4 2012 http://www.dline.info/jism/fulltext/v2n4/4.pdf In order to make software assessment focused on object oriented principals, we propose a classification based on ISO model using properties of the object-oriented design such as: abstraction, inheritance, encapsulation etc. In this paper we present some quality models, then we make the relationship between sub-characteristics of ISO model and properties of both the object-oriented design and the quality. At the end we present a classification for the most popular oriented object metrics based on design and quality properties.