Autodesk 256B1-05A761-1301 - AutoCAD Revit Structure Suite 2010 User Manual page 1534

The following dome roof was created as an in-place element. For more information, see In-Place Elements
on page 434.
A dome roof created as an in-place element
Industry Foundation Classes (IFC) A file format developed by the International Alliance for Interoperability
(IAI). IFC provides an interoperability solution between IFC-compatible software applications in the
construction and facilities management industry. The format has established, international standards to
import and export building objects and their properties.
Revit Architecture provides IFC import and export based on the latest IAI IFC data exchange standard. When
you export a Revit building model to IFC format, the information can be used directly by other building
specialists, such as structural and building services engineers.
For more information about Revit Architecture and IFC, see Exporting to Industry Foundation Classes (IFC)
on page 1367 and Opening Industry Foundation Class (IFC) Files on page 1397.
For more information about the IFC file format, go to http://www.iai-international.org.
infill element An insert that fills (patches) a hole in a host element after changes are made during different
phases of a building project. For example, if you remove a window from a wall during a demolition phase,
Revit Architecture fills the hole with an infill element. By default, the infill element has the same properties
as the host element (the wall).
The following illustration shows a demolished window that has become an infill element. See Infill Elements
for Phasing on page 1335.
An infill element replacing a
demolished window
InfoCenter
You can use InfoCenter to search a variety of information sources with one query. You can also easily access
product updates and announcements.
instance An individual occurrence of an element.
For example, when you place a wall in a building model, the wall is an instance of the wall type. If you
change parameters for the wall instance, the changes affect only that wall. If you change parameters for the
1492 | Glossary