Precursor

The provisions of the exchange requirement er_exchange_building_model (concept) must be satisfied.
Within the context of this exchange requirement the following information within this exchange requirement must be asserted:

Information Needed	MAN	REC	OPT	Actor Supplying	Functional Part
project information:				Building Design	er_exchange_building_model (concept)
project stage
site information:				Building Design	er_exchange_building_model (concept)
specification of each part of the site and the aggregation of parts of the site into an elemental site and/or site complex
reference elevation above sea level
reference latitude
reference longitude
postal address for the site
land title number
site properties:				Building Design	er_exchange_building_model (concept)
site area determined from perimeter (curtilage)
building information:				Building Design	er_exchange_building_model (concept)
specification of each part of the building and the aggregation of parts of the building into an elemental building and/or building complex.
specification of the site on which building is contained.
building name:				Building Design	er_exchange_building_model (concept)
postal address for the building.
building quantities:				Building Design	er_exchange_building_model (concept)
total height of the building
footprint area of the building
volume of the building
number of building storeys within the building
building properties:				Building Design	er_exchange_building_model (concept)
occupancy type of the building
building storey information for each storey:				Building Design	er_exchange_building_model (concept)
height of the storey above ground
measured area of the storey
building storey quantities:				Building Design	er_exchange_building_model (concept)
height of the storey