Through listening to the voice of the customer, quality function deployment (QFD) is a systematic methodology for quality improvement and product development. The quality of a product or service is ultimately judged in terms of customer satisfaction. Customer satisfaction benchmarking can help...

When objective decisions are to be made, statistical methods should be used based on any objective information in the form of data collected about a product or process. Statistical techniques such as control charts, process capability indices and design of experiments have been used in the...