This study classifies the compositional methods of power shoulder jackets from 1980 to the present. It analyzes the relevance of jacket details according to how the power shoulder changes and its compositional methods by era. The research subdivides shoulder compositional techniques into seven, based on shoulder variation, sleeve variation, and the body and sleeve combination. The researcher investigates the frequency and trends of composing shoulders and analyzes details pertaining to the silhouette, jacket length, collar shape, and front closure. The most common method of shoulder composition is an angular shoulder variation. The others are a rounded shoulder variation, puffed sleeve, sleeve variation using pattern incision, raglan and kimono sleeves, and a shoulder variation that expanded the angle and width. The frequency differs slightly for each era. The relationship between shoulder compositional methods and details of power shoulder jackets is statistically significant, showing period-related differences. The homogeneity analysis results reveal that the shoulder composition of power shoulder jackets, the times, and details fall into distinct groups. This analysis shows that the silhouette, length, collar, and front closure of the power shoulder jacket differ depending on the power shoulder’s compositional methods. Moreover, the shape of the power shoulder jacket is distinctly different. One can use this data to help develop the power shoulder jacket design by reflecting the details of shoulder compositional methods and changing trends over time.

Abstract
I. Introduction
Ⅱ. Background
    1. Power shoulder features of the times
Ⅲ. Methods
    1. Research contents
    2. Research process
    3. Analysis method
Ⅳ. Results and Discussion
    1. Classification of shoulder compositional methods for power shoulder and trend by era
    2. Correlation between shoulder compositional methods and details
    3. Analysis of shoulder compositional methods, homogeneity between details and times
Ⅴ. Conclusion
References

• Jeongah Park(부산대학교 의류학과) | 박정아
• Jeongran Lee(부산대학교 의류학과) | 이정란 Corresponding author