Smart building is understood to be one that has incorporated equipment for tertiary or industrial use, automated technical management systems within its facilities, with the aim of reducing energy consumption, increasing comfort and safety for the entire complex. The term is especially applied to office buildings"), corporate buildings") of companies, hotels and the like.[1]​.

A building is considered "smart" if it incorporates information systems throughout the building, offering advanced activity control and telecommunications services. With automated control, monitoring, management and maintenance of the different subsystems or services of the building, in an optimal and integrated way, local and remote. All designed with enough flexibility to make the implementation of future systems simple and economically profitable.

Under this new concept, the comprehensive automation of buildings with high technology is defined. The centralization of building or complex data makes it possible to comfortably supervise and control from a computer the operating states or alarms of the systems that make up the installation, as well as the main measurement parameters. The smart building integrates internal home automation within a network structure.

Or building.

For the building owner, it can deliver a more attractive building while achieving large reductions in energy and operating costs.

For building users, which significantly improve their comfort and safety.

For building maintenance personnel who, through stored information and subsequent study of trends, can prevent damage.

For security personnel, who see their task facilitated and complemented to make it much more efficient.

Among other applications, the Building Management System (BMS) offers the possibility of monitoring the general operation of the entire building. Elevators, energy balance, irrigation, air conditioning and lighting of common areas, sensorization of analog variables such as temperature and humidity, control and alerts based on determined parameters, the access system, fire detection systems, etc.

Likewise, it allows greater access control and continuous monitoring of whoever enters or has entered the building. It has been successfully applied in residential buildings, offices, hotels, hospitals, museums, shopping centers, data processing centers, nursing homes, gated communities and industries.