How to rank the titles of hotel departments?

(1) Director of Operations.

IT has jurisdiction over front office, housekeeping department, engineering department, security department, catering department and IT department.

The front office includes the front desk, switchboard, concierge and guest relations department.

Housekeeping department includes guest rooms, public address, etc.

The engineering department includes strong electricity, weak electricity, air conditioning and water pipes.

The catering department includes Chinese food, western food, banquets, stewards, bars and so on.

(2) Director of Business Development

It belongs to the public relations department of the sales department.

The sales department includes room sales and banquet sales.

Revenue department includes reservation department and revenue manager (generally in first-tier cities, this position is only for large hotels in the group).

(3) Director of Human Resources

It's the personnel department.

(4) Chief Financial Officer and Director of Finance Department

Under the jurisdiction of the credit department, the chief cashier of the purchasing department audits the warehouse, etc. (This piece is not very clear)