# Relations Ontology (OBOREL)

> A collection of relations intended primarily for standardization across ontologies in the OBO...

- Page: https://library.schematica.io/model/162a98d72464475c83d088a600c6b65d
- Model type: Ontology
- License: CC0 1.0
- Access type: Free
- Access method: Download
- Model size: Small
- Formats: OWL
- Domains: Tech / IT
- External link: https://bioportal.bioontology.org/ontologies/OBOREL
- Contact: Chris Mungall (cjmungall@lbl.gov)
- Listed in library: 2025-06-12
- Last updated: 2025-09-10

## Description

## Ontology Info

| Field | Value |
|-------|-------|
| Acronyme | OBOREL |
| Description | A collection of relations intended primarily for standardization across ontologies in the OBO Foundry and wider OBO library. It incorporates ROCore upper-level relations such as part of as well as biology-specific relationship types such as develops from. |
| Format | OWL |
| Categories |  |
| Groups |  |

## Metrics

| Metric | Value |
|--------|-------|
| Classes | 57 |
| Individuals | 36 |
| Properties | 681 |
| Max Depth | 7 |
| Max Child Count | 6 |
| Average Child Count | 2 |
| Classes With One Child | 12 |
| Classes With More Than 25 Children | 0 |
| Classes With No Definition | 10 |

## Projects using OBOREL

- [ISA software suite](https://bioportal.bioontology.org/projects/ISS)
- [Kino](https://bioportal.bioontology.org/projects/Kino)
- [MeRy-B](https://bioportal.bioontology.org/projects/MeRy-B)
- [eagle-i](https://bioportal.bioontology.org/projects/eagle-i)
- [Plant Ontology](https://bioportal.bioontology.org/projects/Plant_Ontology)
- [Influenza Ontology](https://bioportal.bioontology.org/projects/IO)
- [Neural ElectroMagnetic Ontologies](https://bioportal.bioontology.org/projects/NEMO)
- [Immunology Database and Analysis Portal](https://bioportal.bioontology.org/projects/ImmPort)
- [Influenza Research Database](https://bioportal.bioontology.org/projects/IRD)
- [Virus Pathogen Resource](https://bioportal.bioontology.org/projects/ViPR)
- [Phenoscape](https://bioportal.bioontology.org/projects/Phenoscape)
- [Blood Ontology](https://bioportal.bioontology.org/projects/Blood_Ontology)
- [Neuroscience Information Framework](https://bioportal.bioontology.org/projects/NIF)
- [An Ontology for Drug Discovery Investigations](https://bioportal.bioontology.org/projects/AOFDDI)
- [Bgee](https://bioportal.bioontology.org/projects/Bgee)
- [DSS](https://bioportal.bioontology.org/projects/DSS)
- [The Cognitive Atlas](https://bioportal.bioontology.org/projects/TCA)

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Source: https://library.schematica.io/model/162a98d72464475c83d088a600c6b65d