The objective of this study is to provide improved methodology based on the IPA method. One case studies are solved by the proposed method. this study present the method that give value to use SN(Signal-to-Noise) ratio in IPA. A case study of lecture satisfaction are solved by the proposed method and the existing method. Also, the result is compared with the existing method using Mean and the proposed method using SN ratio.

Abstract
 1. 서 론
 2. 방법론
 3.강의 만족도 사례 연구 분석
  3.1 강의 만족도 사례 연구
  3.2 평균과 SN비를 이용한 IPA 결과 분석
 4. 결론
 5. References
 저 자 소 개

• 조용욱(인덕대학교 테크노경영학과) | Yong-Wook Cho Corresponding author