• AHP
• analytic hierarchy process
• automotive
• miglioramento di prodotto
• problem solving
• progettazione
• progettazione di prodotto
• quality manager
• root cause

This thesis describe the manage process of the injectors production sample performed at Continental Automotive of San Piero a Grado. The thesis work is base to analyzed the factory object of the stage and describe the general elements of the injector product.
It is then addressed the mapping and description of the process of product management customer back from focusing on the product database to return the object of compilation. It is then addressed the statistical analysis of the available data will be presented and discussed in the objective results obtained through the application of tools such as histograms, pie charts and Pareto analysis.
Finally, the application is addressed of the Analytic Hierarchy Process for the classification of causes of back more frequently based on company policy discussed with the staff. The application of the latter made it possible to identify, in accordance with the needs of the staff, a small set root causes on which the design and development team can focus in order to make improvements to the existing product.