Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Processes and Techniques (hierarchy name)
4. [processes and techniques by specific type]
5. condition changing (processes)
6. surface or structural changes
7. cracking

Anotations

Scope note:

Condition where a surface or material has cracked due to pressure, differential in temperature, or other strain of some kind. An example is in glassmaking, where fissures develop in the body of a vessel caused by internal strain resulting from inadequate annealing and/or accidental thermal shock.