How do you think these auto companies could effectively use business process engineering tools such as total quality management (TQM) and Sigma Six quality programs to reduce defects?

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Respond to the following questions. 

In recent years, major auto companies have had to recall millions of cars because of defects. Use the Internet to determine the reasons for these quality problems. How do you think these auto companies could effectively use business process engineering tools such as total quality management (TQM) and Sigma Six quality programs to reduce defects?