ABSTRACT
This chapter discusses the number of tools to show how they can be applied in the course of a QFD study. The Tree Diagram is used to define the hierarchy of tasks needed to be completed. The key is knowing all the tasks that are necessary. Traditionally, it has been used to identify the function of a product that adds value and to provide products at the lowest total cost. Traditional experimental designs and Taguchi techniques are tools utilized to understand the relationships in the body of the QFD matrix. Feedback needs to be given so that each team member feels that he or she has positively contributed to the process. While helpful in describing how things happen, explaining these techniques to nonstatistically oriented people only creates confusion. Care should be exercised in the utilization of these techniques. The Interrelationship Digraph takes some issue and develops a flow of logical steps.
