Back in 2016 I put this simple, messy sketch together to describe some basic terminology around Revit models and how they are structured:
Revit Model:
- Category
- Family
- Type
- Instance (also known as “Element”)
May be hosted by:
- Levels
- Grids
- Reference Planes
- Faces
- Special Categories (Floor, Ceiling etc)
- Nothing
May belong to:
- Phases
- Worksets
- Design Options
- Groups
- Other Families (nested)
Gives a good idea of the structure around the Revit Elements. Not much has changed since.