Tencent Ecard utilizes QR codes to facilitate a paperless environment for schools and businesses at no cost. It connects various card-based functions, including canteen services, access control, attendance tracking, and visitor management, making it easier to oversee temporary guests. As an internally developed electronic card solution, Tencent Ecard is highly adaptable for sectors such as education, transportation, manufacturing, healthcare, and industrial parks, promoting efficient management of both online and offline personnel across various locations. Additionally, it can seamlessly integrate with numerous applications and mobile payment platforms, allowing for the rapid consolidation of internal services and office tools across diverse industries. The Ecard also permits the customization of electronic cards with different details, such as user profile pictures, logos, and department identifiers, ensuring that each card is distinct for its holder. Furthermore, it offers a centralized service portal where multiple functionalities can be combined, enhancing operational efficiency and user experience. Overall, Tencent Ecard represents a forward-thinking approach to modernizing access and management systems in numerous fields.