This study explores how to integrate the generative artificial intelligence (AI) tool Midjourney into the fashion design process, emphasizing the visualization of sporty fashion concepts. The research applied Midjourney at every stage of the fashion design process: mood board, fashion sketch, flat drawing, production package, fashion show presentation, and store display and sales. Specifically, sporty fashion was selected as the theme, and customized prompts were developed from prior research and design principles to generate visual outputs for each stage. Furthermore, three apparel design experts evaluated the AI-generated images to assess Midjourney’s practical applicability and effectiveness in each phase of the fashion design workflow. Expert evaluations revealed that Midjourney was particularly effective in the early stages, offering diverse and visually engaging imagery that supported creative ideation and mood expression. The tool allowed quick exploration of different silhouettes during the sketching stage but was imprecise in detailed forms and proportions. Limitations became more evident in the flat drawing and work instruction stages, where outputs failed to accurately reflect material textures and technical construction. Prompt refinements and referencebased prompts were tested but often resulted in inconsistent or stylized outputs. Additionally, continuity between stages was missing. Midjourney shows potential as a creative tool, but experts highlight its limitations for practical industry application. Further research is needed to improve prompt optimization and training data for enhanced accuracy and usability in AI-assisted fashion design workflows.

Abstract
I. Introduction
II. Background
    1. Generative AI-based image generation
    2. Convergence of generative AI and fashion
    3. Identity of sporty fashion
III. Method
    1. Research model and development framework
    2. Detailed elements of sporty fashion
IV. Result
    1. Integration of Midjourney into each stage ofdesign process
    2. Expert evaluation of generative AI usability
V. Discussion and Conclusion
References

• Yeon Hee Yang(Master’s Course, Dept. of Fashion Industry, Ewha Womans University, Korea) | 양연희 (이화여자대학교 의류산업학과 석사과정)
• Jung Soo Lee(Associate Professor, Dept. of Fashion Industry, Ewha Womans University, Korea) | 이정수 (이화여자대학교 의류산업학과 부교수) Corresponding author