Help: QFD House of Quality

#1
Hi I have a question.

We know customer needs are dynamic with technological changes/inventions etc. How then can we adjust the QFD ( house of quality) to fix this problem? One solution (I think) is 1) Constructing bigger House of qualities to include more rows for customer needs ... Not sure about other solutions
 
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#2
The most valuable aspect of a House of Quality is not the chart, but the discussion and discovery which occurs among team members as the House is created. A bigger House discourages discussion and discovery as it adds complexity, takes exponentially more time to complete and is more difficult for one person to understand the full detail.

One alternative solution to a gigantic House is to organize the product functions into subsystems. In the case of an automobile, examples of subsystems would be the drivetrain, the passenger compartment, the exterior surface including doors and windows. These subsystems are often designed and manufactured and tested as stand-alone entities. The customer needs for the engine may be largely separate and independent of needs for the doors and windows. Look at functions and needs within each subsystem, and consider technology changes/inventions. Finally, construct a system-level House of subsystems, listing only the most important needs and most important functions, the ones you recognize cross boundaries of subsystems. This is one idea to simplify a complex House with smaller conceptual units.
 
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