Product planning requires accurate and integrated planning information. A combined house of quality (CHOQ) oriented product planning was presented. The CHOQ consists of quality house of customer requirements (CRs), quality house of product technical characteristics (PTCs) and complex house of quality. The methodology of setting up the CHOQ was put forward. The analytic network process (ANP) method was employed to weight based on the important levels of CRs and PTCs, which considered the interrelationships among the CRs and PTCs. It makes the result of product planning more accurate. The proposed analytic procedure took into account qualitative constraints (feasibility, resource utilization ratio, etc) and quantitative constraints (cost, time to market, etc) in product life cycle. A case was studied by using CHOQ to fulfill product planning.
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