An account is essentially a “span of control.” It is a group of affiliated control panels all under the management of a single Master Administrator.
An account might be a small building with a single control panel. Or it might be a large building with multiple control panels, controlling access to several exterior as well as interiors doors. Or it might be multiple buildings, located in different cities or even different countries. In each one of these situations, however, the account has one and only one Master Administrator.