Building BIOS Architecture

The Building BIOS shall operate on one or more local computing devices physically associated with the building.

A BIOS computing unit may include:

processor;

protected boot memory;

working memory;

persistent storage;

hardware identity or security module;

real-time clock;

network interfaces;

local service interface;

power-failure detection;

backup or controlled shutdown power;

environmental monitoring;

watchdog mechanism.

The physical deployment shall account for:

building size;

number of registered components;

required event volume;

safety and availability requirements;

network topology;

environmental exposure;

service access;

expected lifecycle;

replacement and upgrade.

The BIOS unit shall be installed in a defined, accessible, protected location. Its identity, power source, network connections, environmental limits, and replacement procedure shall be documented.

Essential configuration storage shall not reside exclusively on removable consumer media or an unprotected general-purpose computer.

Power interruption shall not corrupt the approved configuration. The BIOS shall either maintain sufficient temporary power for controlled shutdown or use storage architecture capable of preserving transactional integrity during sudden power loss.

At least one authorized local service path shall exist. Recovery shall not depend solely upon internet access, a manufacturer account, or a mobile application that may become unavailable.

For larger buildings, physical BIOS functions may be distributed across zone controllers, gateway devices, safety controllers, and a coordinating core. Ownership of authoritative data shall remain explicit.