This research compared and analyzed a representative jacket pattern making method to suggest implications for the mass customization process of clothing. Four types of pattern making methods were selected according to the degree of reflection of human body measurements. Patterns were analyzed according to the size of middle-aged women. The results of this study are as follows. First, it identified and compared the difference in human body measurement and drafting processes required for pattern drafting. Next, as a result of analyzing the manuals and institutional figures presented in the pattern drafting manuals, problems such as B.P. location and compartment of the chest circumference, which are not appropriate, were found and the human body measurement method is different for each pattern making method. Through the above analysis, the advantages and disadvantages of the pattern making methods were identified and proposed improvements and implications for the application to the apaarel mass customization process were presented.