Reflections about QFD
Even though I feel a bit late to express my ideas about QFD (Quality Function Deployment) due to pma, I am still exited to start a new module.
I want to tell my opinions about QFD. I believe that QFD is very common; but not widely used. I never heard anything about QFD before the class on Tuesday. 80% of cost of new product development comes from designing a suitable product, developing it, and testing it. If the designer team could not handle producing suitable products for their focused customer, the product will disappear in short-time as other cases. (Paul told that 7 out of 10 products do not succeed!)
I believe that the most distinctive QFD feature is more customer-based than other tools. The engineering criteria are chosen with respect to customer anticipations and also QFD shortens the time to provide all of the elements on the sheet. I can continue explaining every features, it might take hundreds of page and dozens of days to cover one by one.
Let’s talk deeply about QFD
Customer Requirements which are clearly seen on the left side of chart might be especially gathered from feedback data or anticipations, and they are categorized according to significance level. With respect to those elements, management team and engineers have to meet (I know this part is the hardest!) and decide the engineering norms which is seen at the product design requirements. With the expected commitment, they decide all of the product design requirements. On the very right side of the chart, QFD compares the other rival products according to customer expectations and evaluates, so the team can understand the product’s drawback and benefit quicker and can enhance easily. This will surely save them a lot of money because they are starting from even before creating something which saves a lot of money. On the top matrix, in order to determine the trade-off between criteria QFD shows the interrelations between product design requirements. One of the important rows is technical difficulty and technical evolution.
Also it seems it seems when comparing this tool to taguchi, QFD is more concerned with more aspects, such as engineering requirement, competitors in the market, and the importance of quality, while taguchi is mainly focus on the financial aspects.