Browse Prior Art Database

Efficient Storage and Use of Customer Requirements Data for a House of Quality

IP.com Disclosure Number: IPCOM000110295D
Original Publication Date: 1992-Nov-01
Included in the Prior Art Database: 2005-Mar-25
Document File: 3 page(s) / 75K

Publishing Venue

IBM

Related People

Dave, RV: AUTHOR

Abstract

Quality Function Deployment (QFD) is a method to perform systematic design of a product or a process. QFD uses a house of quality as a graphical tool to represent the design.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 65% of the total text.

Efficient Storage and Use of Customer Requirements Data for a House of Quality

       Quality Function Deployment (QFD) is a method to perform
systematic design of a product or a process.  QFD uses a house of
quality as a graphical tool to represent the design.

      A House of Quality represents a design in matrix form. Any
design starts with specifications.  In QFD terminology these
specifications are referred to as Customer Requirements (CRs) and are
represented by rows of the matrix.  The design process produces
design parameters referred to as Product Parameters (PPs).  Product
Parameters are represented by columns of the matrix. Relationship
matrix shows how a CR relates to PPs, and vice versa.  Each row in
the relationship matrix shows how a given Customer Requirement is
affected by various Product Parameters.  Conversely, a column
indicates how a Product Parameter affects various Customer
Requirements.

      In the old method, description of each CR and PP is entered
when creating a house.  The house evolves as the project progresses.
New houses will have a large number of CR and PP in common with old
houses.  This requires a user to enter a large amount of duplicate
data.

      In the new approach, each CR/PP is entered in a directory
table.  The user chooses the CR/PP from this directory to create a
house.  All directory entries are displayed in a list box for the
user selection.  Also in an update process, the CR/PP which are
alread...