Vocabularies are sets of related terms that are used to categorize modules or content throughout a specific website or throughout all sites in a DNN installation.
A vocabulary's type can be:
- Simple for folksonomy, where anyone can add a term to a flat list.
- Hierarchy for taxonomy, where terms are typically added by the host/superuser to a hierarchy.
DNN provides two system vocabulary sets that can be edited but not deleted:
- Tags. Terms that can be defined by anyone to categorize content. Tags can also be added to the vocabulary while editing a page.
- Module_Categories. Terms defined by the host/superuser to categorize modules.