| As awareness of resource scarcity and environmental challenges grows,the concept of sustainable consumption is gaining ground.Driven by national policies and green capital,the circular economy has experienced rapid growth,giving rise to the rise of various types of second-hand trading platforms.As representatives of the emerging business models in the second-hand trading industry,vertical types of second-hand trading platforms have expanded the design and practice of the circular economy.These platforms provide consumers with environmentally friendly,economical,and convenient consumption options,making positive contributions to the sustainable development of society,economy,and environment.Existing research has focused on other disciplines,such as business models and marketing techniques,while research on the service design of vertical second-hand trading platforms has been limited.This research aims to investigate design approaches to enhance the service experience of vertical second-hand trading platforms,concentrating on profiling the service experience of both buyer and seller users,and providing references to theoretical and practical design strategies for their development and optimization to promote the sustainable development of the second-hand trading industry.From the perspective of sustainable business models,this study deciphers the system composition of vertical second-hand trading platforms with the help of a service-driven logical framework,and finds that at the participant level,the core of the transaction subject is the core,and the supporters operate together to guarantee the service quality;at the resource integration level,it shows high performance and multi-dimensional resource allocation optimization;at the service exchange level,the platform is characterized by multi-level service that bridges the differences in demand At the level of service exchange,the platform is characterized by multi-level service exchange that bridges demand differences;at the level of system and institutional arrangement,the platform focuses on strongly guided transaction rules and re-tuned design standards;at the level of service ecosystem,multiple service values are extended and circular system links are constructed.Based on these findings,this study analyzes the user goals of buyers and sellers in second-hand transactions and explores the service experience characteristics of vertical second-hand transaction platforms through case studies and how the platforms provide novel consumption experiences for participants through service model innovation.By combining quantitative and qualitative user research,the factors and relationships influencing the service experience of vertical second-hand trading platforms under sustainable business models are identified and summarized.Based on the current service experience status,the service design goals are derived and three service design strategies for vertical second-hand trading platforms from a sustainable perspective are proposed,namely,design strategies to refine the platform’s environmental resource management measures,design strategies to strengthen the transparency of recyclable system links,and design strategies to visualize sustainable user participation,and are elaborated in the context of design practice.Based on the sustainable business model,this topic investigates the service design of vertical second-hand trading platforms.On the one hand,it enriches the service design research in the context of sustainable business models,provides a reference service design framework for vertical second-hand trading platforms,and provides theoretical guidance for their development and optimization.On the other hand,the proposed service design strategies provide practical guidance for vertical second-hand trading platforms and provide useful references for the future development of such platforms.This study aims to improve the service experience of both buyer and seller users,optimize the second-hand transaction ecosystem,achieve commercial profitability and sustainability,and promote the rapid development of the second-hand transaction industry.In addition,this study hopes to draw attention to the importance of circular economy and sustainable consumption,and jointly promote the second-hand transaction industry toward sustainable development. |