The document discusses the use of property management systems (PMS) to manage back office operations in the hospitality industry. A PMS is a comprehensive software that automates front and back office functions like reservations, point of sale, accounts, and maintenance. It integrates with other systems and provides features like yield management, billing, reporting, and customizable user access. The back office handles long-term finances, franchise operations, and higher-level management. PMS replaces paper-based methods and modern systems use cloud technology.