A model is a virtual version of the building design. It describes the geometry of the model elements and captures the design intent and logical relationships between elements.

Create a model 

When you’re ready to begin a new design, create a Revit model. The changes you make to elements in one view of a model are instantly visible in all other views.

Model vs. Annotation

Place model elements and annotation elements in project views, and understand the rules that govern their visibility.