Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Visual and Verbal Communication (hierarchy name)
4. Information Forms (hierarchy name)
5. information forms (objects)
6. document genres
7. [documents by function]
8. records (documents)
9. [records by form or function]

Anotations

Scope note:

Agreements between a customer and supplier, by which the supplier will deliver goods or services on multiple delivery dates over a period of time, often negotiated to take advantage of predetermined pricing.