The data model consists of the following:
The IfcProductExtension further
specialises the concepts of a (physical) product, i.e. a component
likely to have a shape and a placement within the project context. The
product information is provided for individual product occurrences as
subtypes of IfcProduct, and for common specific
product types as subtypes of IfcTypeProduct. Both definitions are
rooted in supertypes provided within the IfcKernel.
Basis concepts, introduced within the IfcProductExtension,
- the spatial project structure,
- the element,
- the grid,
- the port, and
- the annotation.
The spatial project structure defines
and its decomposition structure. In addition the concepts of system and
zone are introduced within the IfcProductExtension.
Relationships between the spatial structure and the elements are
defined, such as spatial containment and space boundaries.
- the site,
- the building,
- the building storey, and
- the space
An element is assigned to the spatial project structure and
may refer by its placement to a grid. Basic types of elements, which
are introduced are
- building element
- opening element
- furnishing element
- distribution element (including heating, ventilation, air
conditioning, electrical and equipment elements)
- transportation element
The other concepts introduced are
- a grid, providing a contraint placement for
- an annotation to capture any additional annotations to a
building model or plan (such as explanatory text, dimensioning, etc.),
- a port, providing connectivity between elements.
Interfaced schemas (18):