Taxonomy - Drupal taxonomy, what is Taxonomy?

Taxonomy or taxonomic schemes consist of taxonomic units known as taxa or types of things, which are often arranged in a hierarchical structure—typically based on subtype-supertype (parent-child) relationships. In such subtype-supertype relationships, a subtype inherits all constraints of its supertype, plus one or more additional constraints. For example, a car is a subtype of a vehicle. Therefore, every car is also a vehicle, but not every vehicle is a car. A car must satisfy additional requirements beyond being just a vehicle.

The Taxonomy module allows you to categorize content into categories and subcategories. It supports multiple category lists (controlled vocabularies) and enables the creation of thesauri (controlled vocabularies that define relationships between terms), taxonomies (controlled vocabularies with hierarchical relationships), and free tagging vocabularies that can be defined during content creation. To view and manage the terms of each vocabulary, click the link to view the term list. To delete a vocabulary and all its terms, choose “Edit vocabulary.”

The Taxonomy module is one of the core modules in Drupal and is enabled by default. This means the basic installation already includes default category functionality.

Now, let’s talk about categories. To access taxonomy settings, go to Content Management. In this menu, you’ll find the Categories section, where you can configure vocabularies (category names) and terms. In this context, a Vocabulary is the title or name of a category, and a Term is the specific item or type within that category.

You can further expand taxonomy. For example, if you have multiple vocabularies, you can assign different vocabularies to different content types.