7.Set target figures to be achieved for the engineering
characteristics.
lThese information are obtained from the
comparison with competitor products or from trials with customers. These can be set
comparative to competitors.
6.Identify relevant interactions between engineering
characteristics,
lThe roof matrix provides the check and gives an opportunity to
recognise strong connections
5.Identify the relationship between engineering characteristics
and product
attributes,
lThe strength of the relationship can be expressed by numbers or
symbols.
4.Draw a matrix of product attributes against engineering
characteristics,
lAll engineering characteristics that influence any of product
attributes should be included and expressed in terms of measurable units.
Steps in QFD Method (2)