Step three, formulate a relationship between the words and the house. The relationship area displays the connection between the house and the words, that is the technical requirements and the customer requirements. various symbols can be used here, I prefer to use a rating of one, three and nine. As we would use these numbers to do more calculations, we will come to that later. Step four, construct comparison of customer and technical requirements with our competitors. This area plots the comparison with the competition for the customer requirements.

It is not always shown on TFD houses. Step five, lists the target values for technical requirements. In this area, you have to list the target values for technical requirements. The target values for each technical requirement are to be identified by working cohesively with different teams within and if required outside the organization.