COBie sheets relate to each other through established hierarchies. These are generally categorized into three primary levels: Spatial, Equipment, and Common.
I. SPATIAL
This hierarchy defines the physical breakdown of the project. A single Facility contains multiple Floors, and each floor contains various Spaces (rooms or areas).
Note on Zones: Zones are independent of this hierarchy. A single Zone (e.g., a fire compartment) can encompass multiple facilities, floors, or spaces.
II. EQUIPMENT
This level defines the assets within the facility. An Equipment Type serves as the template for multiple Components (individual instances).
Note on Systems: Systems are independent. A single System (e.g., HVAC) can contain a variety of different types and components working together.
III. COMMON
These elements do not follow a rigid hierarchy but grow as the project progresses. For example, Contacts evolve from design-phase consultants to construction-phase manufacturers and suppliers.
