A set of model elements that are placed together in a building design. ______ are useful when you need to create entities that represent repeating units or are common to many building projects (such as hotel rooms - apartments - or repeating floors).

Revit is often used for designing buildings and creating 3D models of architectural designs. It allows architects to create detailed building designs, visualize the project in 3D, and produce detailed documentation and construction drawings.
Revit is a contraction of Revise-Instantly.