Is the relationship between check-in management and room management in guest management system one-to-many or many-to-one

One to many. Guest relationship is the direct relationship between the hotel and the guests who come to the hotel or stay in the hotel, and it is a one-to-many relationship. Guest relationship management usually establishes, develops and improves the relationship with the guests who come to the hotel and stay in the hotel by setting the positions of assistant manager and guest relationship director. The humanized service and efficient management of the hotel are the standards that reflect the service level of the hotel, and also the evaluation standards of the hotel guest control system.