"method to transform user demands into design quality, to deploy the functions forming quality, and to deploy methods for achieving the design quality into subsystems and component parts, and ultimately to specific elements of the manufacturing process"
Substantial Time Commitment
Formal method to attain customer requirements and transform them into engineering requirements
Handy way to visual many forms of information in one chart (customer requirements, competition, engineering requirements, target values, requirement relationships)
Proposed Ranking System
Make a chart with all of the requirements
Compare two requirements at a time. Give the more important requirement a 1 and the less important requirement a 0.
Compare all requirements
Sum totals for each requirement
Find the total number of comparisons = N x (N-1)/2
Divide totals for each requirement by number of combinations resulting in a percentage. This is the weight of the requirement.
Enter weight of requirement into QFD chart