# Horridge Test Ontology (HTO)

> This is just a test ontology. Called the Horridge Test Ontology (HTO)

- Page: https://library.schematica.io/model/8e439bcf0eea48118f1226f09168a718
- Model type: Ontology
- License: Apache 2.0
- Access type: Free
- Access method: Download
- Model size: Small
- Formats: OWL
- Domains: Tech / IT
- Audiences: Developer
- External link: https://bioportal.bioontology.org/ontologies/HTO
- Contact: Matthew Horridge (horridge@stanford.edu)
- Listed in library: 2025-06-12
- Last updated: 2025-09-10

## Description

## Ontology Info

| Field | Value |
|-------|-------|
| Acronyme | HTO |
| Description | This is just a test ontology.  Called the Horridge Test Ontology (HTO) |
| Format | OWL |
| Categories |  |
| Groups |  |

## Metrics

| Metric | Value |
|--------|-------|
| Classes | 3 |
| Individuals | 0 |
| Properties | 0 |
| Max Depth | 0 |
| Max Child Count | 3 |
| Average Child Count | 3 |
| Classes With One Child | 0 |
| Classes With More Than 25 Children | 0 |
| Classes With No Definition | 3 |

## Projects using HTO

No projects using HTO

---

Source: https://library.schematica.io/model/8e439bcf0eea48118f1226f09168a718