1. Marketing management Catering enterprises can use this platform for marketing management, including enterprise personnel notification, supplier notification, etc., thus replacing the previous letter/telephone/fax notification mode, which not only saves a lot of money, but also delivers/receives information in real time, greatly improving management efficiency. 2. Promotion notice Whenever there is a promotion, the catering enterprise can send the time, place and content of the promotion to the member (customer) immediately through this machine, and can also ask the member (customer) to save the promotion information, so as to enjoy the promotion discount by virtue of the promotion message, so as to make statistical analysis of the promotion effect. 3. Promotion Lottery Catering enterprises can let members (customers) send lottery numbers to this platform for promotion lottery. 4. Market Survey This platform can complete the market survey of members (customers) by sending the survey contents to their mobile phones in the form of short messages, and then asking the members (customers) to reply the survey results. Nanjing Chuanzhong Technology is composed of a group of professionals with rich experience in value-added work of network, Internet and telecom, and experience in software and hardware development and maintenance. Mainly engaged in computer system integration research and development, network integrated wiring, communication equipment sales, telecom value-added services and other services.