Another use of quality function deployment (QFD) is to show how the quality effort will
be deployed. As Figure 5.4 shows, design characteristics of House I become the inputs to House
2, which are satisfied by specific components of the product. Similarly, the concept is carried
to House 3, where the specific components are to be satisfied through particular production
processes. Once those production processes are defined; they become requirements of House 4
to be satisfied by a quality plan that will ensure conformance of those processes. The quality plan
is a set of specific tolerances, procedures, methods, and sampling techniques that will ensure
that the production process meets the customer requirements..