## 5 Conclusions  
In this study, a packaging design method for intangible cultural heritage based on a novel Stingray model was constructed and verified by a practical application using clay sculptures in Joon County as an example. This study collected users' perceptual vocabulary by introducing the perceptual engineering method and combined it with the hierarchical analysis method (AHP) for weight ranking to optimize the design decision-making process. Simultaneously, the innovative design of non-heritage packaging patterns was completed by combining the Midjourney generative tool and the TOPSIS method to evaluate different design scenarios objectively. The results of the study show that compared with traditional design methods, the novel Stingray model provides scientific guidance in the application of generative tools to the design process of non-heritage packaging, which significantly improves the accuracy, rationality, and feasibility of designs. The specific contributions are summarized as follows. 1. Theoretical Contribution: The first non-heritage design framework based on the Stingray model, integrating perceptual engineering, AHP hierarchical analysis, and the TOPSIS method, is proposed, which makes the process of non-heritage packaging design more scientific and systematic and improves the transparency and effectiveness of the design decision-making. 2. Methodological contribution: The Stingray design model was optimized to better adapt to the characteristics of generative tools, thus improving the efficiency and controllability of the design process. This new design path provides feasible methodological support for the modernization and transformation of nonheritage products. 3. Practical Contribution: Evaluating the generative design results using quantitative methods, we verified the feasibility of generative tools working in synergy with the scientific method and promoted the green and sustainable development of packaging for non-heritage products. Based on this, the study further draws the following three important conclusions:  
1. The applicability of the new Stingray model in the sustainable design process has been verified: The study found that the new Stingray model supports the entire process from conceptual design to practical application of intangible cultural heritage packaging by integrating multiple methods. It demonstrates strong systematicity and scientific rigor, particularly in the early stages of user perception exploration and the later stages of solution validation, indicating its good applicability and promotional value in the sustainable design of intangible cultural heritage product packaging. 2. Promoting the integration of design methods and generative tools is crucial: This study emphasizes that deeply integrating design science methods and generative tools is a key path to improving design efficiency and quality. Sensory engineering and the AHP method jointly optimized the accuracy of input data, while AI tools efficiently produced creative solutions, achieving a closed-loop system from \"cognitive acquisition\" to \"solution output\". 3. Feasibility assessment is an indispensable part of intangible cultural heritage packaging design: Using the TOPSIS method to analyze the relative proximity of the three packaging schemes, this study confirms that the proposed scheme has significant advantages in terms of innovation, safety, sustainability, and fun. This emphasizes the necessity of incorporating a scientific assessment system into intangible cultural heritage packaging practices, which is conducive to the implementation and market promotion of design results. Given the successful application of this research methodology, this study concludes that the new Stingray has strong generalizability and transferability and can serve as a reference for the packaging design of other intangible cultural heritage or arts and crafts products worldwide.