The core of this thesis is doing an analysis of the most common no-compliancesfound during external auditsfrom constructionsectorcompanies. After more than a decade of Quality Systems implementation most of construction companies have currently seen how frequently non-conformities appear as a result of the unfulfillment of the requirements established by the standard ISO 9001. This study presents an analysis of the actual construction industry obtained from the examination of external audit records from certification bodies. After analysing which nonconformities appear repeatedly, the result is compared to extracted reports from past years. The analysis of the non-conformity causes is performed for both samples, as well as, it is exposed what are the tendencies of its apperance in construction sector in the near future. In conclusion some corrective and preventive measures are proposed, in addition to, continuous improvement plans which can be used by these organizations to increase customer satisfaction, competitiveness and eventually, fulfill standard requirements.Máster europeo en Ingeniería de la Construcció
