Hierarchy classification:

1. top of the aat hierarchies
2. Physical Attributes Facet
3. Attributes and Properties (hierarchy name)
4. [attributes and properties by specific type]
5. form attributes
6. size/dimensions
7. [size/dimensions by specific type]

Anotations

Scope note:

Refers to the resolution capability of electronic imaging devices such as computer monitors, digital cameras, televisions, or scanners, expressed as the number of pixels per linear distance (pixels per inch or pixels per centimeter). Pixel density can also describe the resolution of image files.