Revit

Revit families, model libraries and template packs: furniture, fixtures, entourage, structural components and the all-in-one family collections that cover a whole project.

A family is only as good as its parameters. A well built one flexes to the sizes you actually need, reports the data a schedule expects, and carries a level of detail appropriate to the view — coarse in a 1:200 plan, fine in a 1:20 detail. Families that ignore level of detail slow the model and clutter the drawing at the same time.

Naming and category matter as much as geometry, because schedules, filters and view templates all read them. A door placed as generic model will not appear in a door schedule no matter how correct it looks.

See Revit against ArchiCAD and AutoCAD, Rhino versus Revit and level of development in BIM.