Sequence Diagrams for this app

the project idea is based on a system that detect and check every visitor that enters the facility of the company, by checking the temperature and medical status of visitor based on the information in their smart watch with using the QR code in their watch (first at the gate) by using camera and sensor to detect any intruders that don't have it. As well , the smart watch will send vibration to the visitor if he gets close to another person for less than 2 meters. By using (Tawakkalna) app from the health ministry of Saudi Arabia, it will help the system by reading their health status and persons information. Also, the system can take the temperature by using the smart watch that is attached to the person hand. Lastly, the sensors and the cameras will detect each person space in the queue and work space which if the space less than 2 meters the system will notify the person by vibrating the watch to alert them about the distance violation