In this work we present the results we got through a survey we carried out among the registered companies with the ISO 9000 standard from Comunitat Valenciana. The main objective is to know if the cost savings which are produced by the certification in the ISO 9000 standard of quality are higher than the cost-benefit and to know what variable influence the cost reduction. The most important results are: 43 per cent of registered companies reduce their costs. The average percentage is 9.45. The older the registered companies are, the more they reduce their costs. The industrial sector reduces its costs the most. The more the companies are involved in the quality systems, the more they reduce their total cost... [Leer más...]