What are the three core areas of the hotel?

Public area, guest room area and backyard area are the three core areas of the hotel. Public * * * area refers to the area where guests are active, such as lobby and dining area. Guest room area refers to the elevator hall, corridor, guest room and executive lounge on the guest room floor. Backyard refers to the area where administrative logistics personnel work, such as staff office, kitchen, service aisle, linen room, laundry room, staff dormitory, storage room, etc.