# Knowledge Object Implementation Ontology (KOIO)

> KOIO is a domain ontology that tells us what a Knowledge Object is as an artifact. It describes...

- Page: https://library.schematica.io/model/7c12dbb955244da9a8e77ba825adfba5
- Model type: Ontology
- License: Apache 2.0
- Access type: Free
- Access method: GitHub
- Model size: Mid
- Formats: OWL
- Domains: Tech / IT
- External link: https://bioportal.bioontology.org/ontologies/KOIO
- Contact: Knowledge Systems Lab, University of Michigan (knowledgesystemslab@umich.edu)
- Listed in library: 2025-06-12
- Last updated: 2025-09-10

## Description

## Ontology Info

| Field | Value |
|-------|-------|
| Acronyme | KOIO |
| Description | KOIO is a domain ontology that tells us what a Knowledge Object is as an artifact. It describes Knowledge Objects and their parts as they are implemented. For this reason, KOIO generally serves as an evolving formal and explicit model of Knowledge Objects. It can be used to describe the parts of many computable biomedical knowledge (CBK) artifacts found in the wild. In addition, KOIO functions as a formal specification for linked metadata relevant for describing, annotating, packaging, and handling CBK artifacts.<br><br>KOIO is a smaller, more readily usable ontology originally derived from the Knowledge Objects Reference Ontology, KORO. |
| Format | OWL |
| Categories | Other, Vocabularies, Upper Level Ontology |
| Groups |  |

## Metrics

| Metric | Value |
|--------|-------|
| Classes | 2,191 |
| Individuals | 467 |
| Properties | 204 |
| Max Depth | 4 |
| Max Child Count | 693 |
| Average Child Count | 10 |
| Classes With One Child | 89 |
| Classes With More Than 25 Children | 13 |
| Classes With No Definition | 441 |

## Projects using KOIO

No projects using KOIO

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Source: https://library.schematica.io/model/7c12dbb955244da9a8e77ba825adfba5