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 material or technique]
7. opus sectile (visual works)

Anotations

Scope note:

Distinctive visual works composed of individually shaped stones of varying colors used to make a composition. The works may be low-relief or flat. An example is as used for a pendant or gem, where the commesso work is often coupled with enamel, gold, and gems. Although usage may overlap, for larger works, such as table tops, using a similar technique, use "pietra dura (visual works)." For works utilizing differently colored layers of a single material to create the design, use "cameos."