Core Viewpoint - The article highlights the transformation of the social security card in Nanjing into a multifunctional tool that enhances urban life, providing various services across multiple sectors, thereby redefining the concept of convenience for residents [1][5]. Group 1: Service Expansion - The social security card has evolved from a single-use credential to a comprehensive service provider, facilitating 340 services and 189 functions in the human resources sector, and enabling seamless medical and transportation transactions across over 300 cities with an average daily usage of 3 million transactions [1][2]. - The integration of services allows for instant card issuance within 10 minutes and online applications through the "Jiangsu Smart Human Resources" app, significantly reducing the need for in-person visits [2]. Group 2: User Experience - The event showcased various applications of the social security card, including discounts on shopping and easy access to medical services, which have enhanced user satisfaction and engagement [3]. - A digital map was introduced to help residents locate nearby service points for over 70 frequently used services, improving accessibility and convenience [2]. Group 3: Future Developments - The Jiangsu Provincial Human Resources Department has outlined plans for 2025 to further enhance the social security card's capabilities, including interconnectivity with over 300 cities for public transport and direct settlement for out-of-town medical services [4]. - The city aims to leverage big data for personalized services and improve data security, ensuring a robust and innovative application of the social security card in various sectors [5].