# Information Artifact Ontology (IAO)

> The Information Artifact Ontology (IAO) is an ontology of information entities, originally...

- Page: https://library.schematica.io/model/c2f1d9a2637e4bffb6553522e3b87fab
- Model type: Ontology
- License: CC0 1.0
- Access type: Free
- Access method: Download
- Model size: Small
- Formats: OWL
- External link: https://bioportal.bioontology.org/ontologies/IAO
- Contact: Alan Ruttenberg (alanruttenberg@gmail.com)
- Listed in library: 2025-06-12
- Last updated: 2022-11-16

## Description

## Ontology Info

| Field | Value |
|-------|-------|
| Acronyme | IAO |
| Description | The Information Artifact Ontology (IAO) is an  ontology of information entities, originally driven by work by the OBI consortium.<br><br>To import<br><br>Latest released version: http://purl.obolibrary.org/obo/iao.owl<br><br>Other versions<br><br>Developer (live) version: http://purl.obolibrary.org/obo/iao/dev/iao.owl<br><br>Ontology metadata properties and classes only: http://purl.obolibrary.org/obo/iao/dev/iao.owl<br><br>Dated versions<br><br>http://purl.obolibrary.org/obo/iao/2009-11-06/iao.owl<br>http://purl.obolibrary.org/obo/iao/2010-09-14/iao.owl<br>http://purl.obolibrary.org/obo/iao/2010-10-26/iao.owl<br>http://purl.obolibrary.org/obo/iao/2011-05-09/iao.owl<br>http://purl.obolibrary.org/obo/iao/2015-02-23/iao.owl<br><br><br>Please note: The ontology metrics displayed by BioPortal do not distinguish IAO-developed terms from terms imported from other ontologies.<br><br>Tracker: http://purl.obolibrary.org/obo/iao/tracker<br>Discussion group: http://groups.google.com/group/information-ontology |
| Format | OWL |
| Categories | Other, Biomedical Resources, Imaging |
| Groups | OBO Foundry |

## Metrics

| Metric | Value |
|--------|-------|
| Classes | 264 |
| Individuals | 20 |
| Properties | 57 |
| Max Depth | 11 |
| Max Child Count | 39 |
| Average Child Count | 3 |
| Classes With One Child | 29 |
| Classes With More Than 25 Children | 2 |
| Classes With No Definition | 40 |

## Projects using IAO

- [ISA software suite](https://bioportal.bioontology.org/projects/ISS)
- [eagle-i](https://bioportal.bioontology.org/projects/eagle-i)
- [Beta Cell Genomics database](https://bioportal.bioontology.org/projects/BCGD)
- [Ontology for the obstetric and neonatal domain](https://bioportal.bioontology.org/projects/ONTONEO)
- [Neural ElectroMagnetic Ontologies](https://bioportal.bioontology.org/projects/NEMO)
- [Adverse Event Reporting Ontology](https://bioportal.bioontology.org/projects/AERO)
- [eNanoMapper](https://bioportal.bioontology.org/projects/eNanoMapper)
- [Influenza Research Database](https://bioportal.bioontology.org/projects/IRD)
- [Blood Ontology](https://bioportal.bioontology.org/projects/Blood_Ontology)
- [Ontology of Data Mining](https://bioportal.bioontology.org/projects/OntoDM)
- [Bioinformatics Web Service Ontology](https://bioportal.bioontology.org/projects/BWSO)
- [An Ontology for Drug Discovery Investigations](https://bioportal.bioontology.org/projects/AOFDDI)
- [Knowledge Grid](https://bioportal.bioontology.org/projects/KGRID)

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Source: https://library.schematica.io/model/c2f1d9a2637e4bffb6553522e3b87fab