Abstract. Quality is currently considered one of the main assets with which a firm can enhance its competitive global position. This is one reason why quality has become essential for ensuring that a company's products and processes meet customers ' needs. A recent innovation in the systems area is the development of a set of mechanisms and models for evaluating quality. This article describes the design of a Quality Model with a Systemic Approach to Software Products that assesses a product's efficiency and effectiveness. Different quality models were studied: McCall, Boehm, FURPS, ISO 9126, Dromey, ISO 15504 in an attempt to identify the aspects present in these models that are deemed important in a Systemic Quality model. We designed a model prototype that reflects the essential attributes of quality. This model was evaluated using a method so it can be validated and also enhanced. The evaluation method consisted of: designing a survey, formulating, validating and applying the measurement instruments; defining an algorithm to obtain the quality estimate and analyzing the results. The model prototype enabled the strengths and weaknesses of the software products studied to be identified. When evaluating a software product using the model prototype, it was possible to ascertain its compliance with the standards and use the results to improve it. Since the evaluation was systemic, processes that