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. [script and type forms]
8. scripts (writing)
9. [scripts by form]
10. Syriac scripts

Anotations

Scope note:

Writing system originally used for the Sogdian language and derived from the Syriac writing system. It is a consonantal writing system, in each symbol stands for a consonant, leaving the reader to supply the appropriate vowel. The script consists of 17 consonants, many of which have alternate forms for initial, middle, and final position.