Abstract-Quality that is identified independent of any measurable characteristic is defined as the capability to meet the customer expectations, whether the requirements are explicit or not. A recent innovation in the Systems Area is the development of a set of mechanisms and models for evaluating quality. This article compares the design of a Quality Model with its factors and criteria Different quality models were studied: McCall, Boehm, FURPS, Dromey, and GEQUAMO in an attempt to identify the aspects present in these models that are deemed important in Software Quality. GEQUAMO software quality model is the best among the models compared, since it can be customizable as per requirement in a dynamic and a flexible way.