Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Visual and Verbal Communication (hierarchy name)
4. Visual Works (hierarchy name)
5. visual works (works)
6. [visual works by form]
7. [visual works by form of image]
8. [images by method of representation]
9. [images by method of projection]
10. orthographic projections (images)
11. plans (orthographic projections)

Anotations

Scope note:

Plans designed for locating details that appear on other drawings, typically small-scale plans of a building or group of buildings that indicate the placement of principal elements of the scheme, which may each be represented in greater detail on other plans.