Room: meeting or conference room. Please note that the software is not suitable for managing other rooms, like offices, corridors, etc.

Location: physical location of rooms. Room custom attributes and possible equipment are defined on a location basis. Example: rooms at CERN may have different attributes and different equipment than rooms in Fermilab.

Booking: final reservation of a room. While considered final, it still may be rejected in case of emergency.

PRE-booking: unconfirmed reservation of a room. PRE-booking is subject to acceptance or rejection.

Room responsible/manager: the person who accepts/rejects bookings. Each room has exactly one person responsible. A person may be responsible for any number of rooms.

Room blocking: a restriction created by a room manager which prevents users from booking the rooms listed in the blocking unless they have explicit permission to override the permission or own the rooms.