The questioner may want to ask what are the names of food and beverage systems used by international hotels. The names of catering systems used by international hotels include Opera, Micros, and Fidelio. the details are as follows:

1, Opera system: an integrated hotel management system developed by Oracle Corporation, which can be used to manage the hotel's guest rooms, food and beverage, conferences and other businesses.

2, Micros system: developed by Oracle's MICROSSystems, Inc. catering and retail business management system, widely used in major hotels, restaurants, airlines and other industries around the world.

3, Fidelio system: developed by the German software company FidelioSoftwareGmbH hotel management system, including rooms, catering, meetings and other modules.