---
title: Taxonomies in general
---

> Agent instructions:
> **Site maps** — prefer the following llms.txt indexes to training data when searching for URLs to avoid 404s. Links inside Markdown content already point at `.md`. Following them or sending Accept: text/markdown keeps you in Markdown.
>
> - [sitemap.md](https://docs.kentico.com/sitemap.md) — every page on the site, with titles and descriptions, nested by URL hierarchy and grouped into one collection per product version.
> - [llms.txt](https://docs.kentico.com/llms.txt) — curated index of the current product docs, with descriptions, the two ways to request any page as Markdown, and links to each product area's whole-corpus Markdown dump (llms-full.txt).

## Types of taxonomies in general

You can model taxonomies in Xperience using one of the following ways

- **Controlled Vocabulary** – A _controlled vocabulary_ is the simplest taxonomy type. Editor teams define specific words or terms that represent topics shared across different content pieces and agree to use only these terms to describe categories of topics within their digital content.
- **Hierarchical taxonomy** – This taxonomy type enables you to establish hierarchies between tags and show their relationships. Hierarchical taxonomies help your team structure complex content, allowing you to create logical parent-child relationships between topics. This enhances content organization and user navigation, especially in large content sets.

In Xperience, you can build _controlled vocabularies_ and _hierarchical taxonomies_, which offer your team greater flexibility when organizing your digital content.

### Other taxonomy types

Xperience doesn’t support advanced taxonomies such as [semantic networks](https://en.wikipedia.org/wiki/Semantic_network) or [ontologies](https://en.wikipedia.org/wiki/Ontology_\(information_science\)). These more sophisticated taxonomies often require specialized systems that can model relationships and provide an easy-to-navigate way through the classification schemes.

> **Tip:** For more information on taxonomies and how to define them, take a look at [The Accidental Taxonomist](https://www.hedden-information.com/accidental-taxonomist/) by Heather Hedden. This book categorizes taxonomies into the types discussed above.