AO2
AO2 is a generic alphanumeric designation used by many organizations to label items, versions, or categories. There is no universal definition for the term; its meaning is determined by the context, schema, or system in which it appears. As such, AO2 functions as a label rather than a concept with a single, inherent meaning.
In information technology and data management, AO2 often appears as a suffix or component within file names,
In libraries, archives, or cataloging systems, AO2 can serve as a collection or shelfmark code, aiding item
Other domains, including manufacturing, logistics, or research projects, may employ AO2 as a workflow step label,
If you can specify the domain or dataset for AO2, a more precise definition can be provided.