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.

The purpose of this study is to evaluate IPA(Importance Performance Analysis) of the factors that influence University Student's Satisfaction of teaching. The sample was selected 173 students in I university. We will conduct the IPA to compare importance and satisfaction about the factors and analyze by frequency analysis, paired t-test, ANOVA using the SPSS 19.