Six sigma has been the most influential management innovation tool in order to achieve the customer’s satisfaction and keep the competition in the age of limitless competition. The success in six sigma is to find the correct CTQ (Critical to Quality). QFD

Six sigma has been the most influential management innovation tool in order to achieve the customer's satisfaction and keep the competition in the age of limitless competition. The success in six sigma is to find the correct CTQ(Critical to Quality). QFD(Quality Function Deployment) is the efficient too ever created to tie product and service design decisions directly to customer wants and needs. One of the mistakes in QFD is to analyze using an inconsistent HOQ(House of Quality) chart. An inconsistent HOQ chart is one in which the information from the correlation matrix is inconsistent with that from the relationship matrix. This study presents the consistency check and inconsistency check in case of failing the consistency check. Also we propose the procedures using the Limiting Probability in correlation matrix and the Median Rank in relationship matrix in order to be consistent in HOQ chart.

제품의 품질을 측정함에 있어 대부분의 방법들은 각각의 항목들에 대해 가중치를 부과하고 등급을 부여함으로써 실시된다. 그러나 고객의 입장에서는 단순한 등급보다는 객관적인 품질과 주관적 품질을 모두 고려한 보다 객관적인 품질평가지표를 원한다. 이 논문에서는 품질을 평가하는데 있어서 쌍대비교(Paired Comparison)와 메디안랭크(Median Rank) 방법을 사용하여, 상호 품질항목에 대한 쌍대비교를 통해 척도를 산출해 낸 후 해당되는 메디안 랭크를 부여함으로써 객관적 및 주관적 품질요소를 모두 반영한 통합된 품질평가 방법을 제시하고자 한다.