Taxonomies are used as groupings for the custom post types or to set pick lists. It is good practice in museum collection management to use pre-defined terms for nomenclature where possible.
| Taxonomy | Post type | Note |
| collection | object | An object belongs to one collection. Collections can be hierarchical. |
| location_type | location | The type of location eg building, wall, room |
| movable_unit_type | movable_unit | The type of unit eg cupboard, shirt stand. |