Assessing product quality from the production process logs

A real challenge for manufacturing industry is to be able control not only the process but also production quality. Products that are suspected faulty deviated from their nominal path in line and inspected more closely. The fact some products deviate others fail at check operations can used as an indicator of poor product Based on this idea, paper proposes a method compute quality index or exactly penalty taking into account both batches. relies categorizing according how they follow mining techniques. originality proposed built advanced data analysis techniques enhanced by expert know-how. highlights risk customer return, which highly relevant information after sales service. significance illustrated printed circuit board using surface mount technology Vitesco Technologies. Data collected execution system. results obtained over than 10,000 single electronic boards show 91.7% good compliance with respect requirements. For other products, identifies root causes may call maintenance reconfiguration actions.