Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Components (hierarchy name)
4. components (objects parts)
5. [components by specific context]
6. information form components
7. layout features

Anotations

Scope note:

Refers to the extra spacing between lines of metal type, in addition to that provided by the shoulders of type sorts. For the space allowed for each line of type when produced by means other than metal type, use "line spacing."