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Ontology for Biomedical Investigations
Last uploaded:
May 19, 2026
| Acronym | OBI |
| Visibility | Public |
| Description | OBI is an ontology of investigations, the protocols and instrumentation used, the material used, the data generated and the types of analysis performed on it. To import, Latest version: http://purl.obolibrary.org/obo/obi.owl Latest release notes at http://purl.obolibrary.org/obo/obi/release-notes.html Note: BFO 2.0 pre-Graz release (not official release version) was used in this release., An ontology for representing biomedical investigations, including study designs, the collection and preparation of the targets of investigation, assays, instrumentation and reagents used, as well as the data generated and the types of analysis performed on the data to reach conclusions, and their documentation. |
| Status | Production |
| Format | OWL |
| Categories | |
| Groups |
| Bibliographic reference |
http://purl.obolibrary.org/obo/obi/Technical_Reports
http://purl.obolibrary.org/obo/obi/Technical_Reports
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| Contact | Bjoern Peters ([email protected]) |
| Creation date | May 19, 2026
|
| Deprecated |
false
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| Documentation |
http://purl.obolibrary.org/obo/obi/wiki
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| Homepage |
http://purl.obolibrary.org/obo/obi
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| License | |
| Notes |
Please cite the OBI consortium http://purl.obolibrary.org/obo/obi where traditional citation is called for. However it is adequate that individual terms be attributed simply by use of the identifying PURL for the term, in projects that refer to them.
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| Object creation date property |
http://purl.org/dc/elements/1.1/created
http://purl.org/dc/elements/1.1/created
|
| Object modification date property |
http://purl.org/dc/elements/1.1/modified
http://purl.org/dc/elements/1.1/modified
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| Root of obsolete branch |
http://www.geneontology.org/formats/oboInOwl#ObsoleteClass
http://www.geneontology.org/formats/oboInOwl#ObsoleteClass
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| Subject |
An ontology for the annotation of biomedical and functional genomics experiments.
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| Submission date | May 19, 2026
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| Version IRI |
http://purl.obolibrary.org/obo/obi/2026-05-08/obi.owl
http://purl.obolibrary.org/obo/obi/2026-05-08/obi.owl
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| Version information |
2026-05-08
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| uri |
http://purl.obolibrary.org/obo/obi.owl
http://purl.obolibrary.org/obo/obi.owl
|
| Version | Released | Uploaded | Downloads |
|---|---|---|---|
| 2026-05-08 (Parsed, Indexed, Metrics, Annotator) | 05/19/2026 | 05/19/2026 | OWL | CSV | RDF/XML | Diff |
| 2026-03-19 (Archived) | 04/01/2026 | 04/01/2026 | OWL | Diff |
| 2025-12-18 (Archived) | 01/06/2026 | 01/06/2026 | OWL | Diff |
| 2025-10-14 (Archived) | 10/24/2025 | 10/24/2025 | OWL | Diff |
| 2025-07-28 (Archived) | 09/09/2025 | 09/09/2025 | OWL | Diff |
| 2025-05-01 (Archived) | 05/09/2025 | 05/09/2025 | OWL | Diff |
| 2025-03-06 (Archived) | 03/20/2025 | 03/20/2025 | OWL | Diff |
| 2025-01-09 (Archived) | 01/23/2025 | 01/23/2025 | OWL | Diff |
| 2024-12-05 (Archived) | 12/12/2024 | 12/12/2024 | OWL | Diff |
| 2024-10-25 (Archived) | 11/04/2024 | 11/04/2024 | OWL | Diff |
| 2024-10-03 (Archived) | 10/22/2024 | 10/22/2024 | OWL | Diff |
| 2024-06-10 (Archived) | 06/11/2024 | 06/11/2024 | OWL | Diff |
| 2024-01-09 (Archived) | 01/22/2024 | 01/22/2024 | OWL | Diff |
| 2023-09-20 (Archived) | 10/02/2023 | 10/02/2023 | OWL | Diff |
| 2023-07-25 (Archived) | 07/25/2023 | 07/25/2023 | OWL | Diff |
| 2023-03-10 (Archived) | 03/23/2023 | 03/23/2023 | OWL | Diff |
| 2022-12-14 (Archived) | 12/14/2022 | 12/14/2022 | OWL | Diff |
| 2022-07-11 (Archived) | 07/11/2022 | 07/11/2022 | OWL | Diff |
| 2022-01-03 (Archived) | 01/10/2022 | 01/10/2022 | OWL | Diff |
| 2021-08-18 (Archived) | 08/23/2021 | 08/23/2021 | OWL | Diff |
| 2021-04-06 (Archived) | 04/16/2021 | 04/16/2021 | OWL | Diff |
| 2020-12-16 (Archived) | 12/23/2020 | 12/23/2020 | OWL | Diff |
| 2020-08-24 (Archived) | 09/10/2020 | 09/10/2020 | OWL | Diff |
| 2020-04-23 (Archived) | 04/23/2020 | 04/23/2020 | OWL | Diff |
| 2020-04-09 (Archived) | 04/20/2020 | 04/20/2020 | OWL | Diff |
| 2019-11-12 (Archived) | 11/20/2019 | 11/20/2019 | OWL | Diff |
| 2019-08-06 (Archived) | 08/13/2019 | 08/13/2019 | OWL | Diff |
| 2019-06-05 (Archived) | 06/13/2019 | 06/13/2019 | OWL | Diff |
| 2018-08-27 (Archived) | 08/27/2018 | 09/04/2018 | OWL | Diff |
| 2018-05-23 (Archived) | 05/30/2018 | 05/30/2018 | OWL | Diff |
| 2018-02-12 (Archived) | 02/28/2018 | 02/28/2018 | OWL | Diff |
| 2017-11-07 (Archived) | 11/14/2017 | 11/14/2017 | OWL | Diff |
| 2017-09-03 (Archived) | 09/12/2017 | 09/12/2017 | OWL | Diff |
| 2017-02-22 (Archived) | 03/21/2017 | 03/21/2017 | OWL | Diff |
| 2016-10-11 (Archived) | 10/13/2016 | 10/13/2016 | OWL | Diff |
| 2016-06-30 (Archived) | 07/11/2016 | 07/11/2016 | OWL | Diff |
| 2015-12-07 (Archived) | 12/15/2015 | 12/15/2015 | OWL | Diff |
| 2015-10-20 (Archived) | 11/24/2015 | 11/24/2015 | OWL | Diff |
| 2015-09-15 (Archived) | 10/01/2015 | 10/01/2015 | OWL | Diff |
| 2015-04-13 (Archived) | 05/04/2015 | 05/04/2015 | OWL | Diff |
| 2014-12-03 (Archived) | 03/24/2015 | 03/24/2015 | OWL | Diff |
| 2014-12-03 (Archived) | 12/17/2014 | 12/17/2014 | OWL | Diff |
| 2014-08-18 (Archived) | 08/25/2014 | 08/25/2014 | OWL | Diff |
| 2014-03-29 (Archived) | 03/29/2014 | 04/02/2014 | OWL | Diff |
| 2013-10-25 (Archived) | 10/25/2013 | 11/19/2013 | OWL | Diff |
| 2012-07-01 (Archived) | 07/16/2012 | 07/16/2012 | OWL | Diff |
| 2012-03-29 (Archived) | 03/30/2012 | 04/10/2012 | OWL | Diff |
| 2011-12-13 (Archived) | 01/27/2012 | 01/27/2012 | OWL | Diff |
| 2011-07-20 (Archived) | 07/20/2011 | 08/05/2011 | OWL |
| 2011-04-20 (Archived) | 04/20/2011 | 05/10/2011 | OWL |
| 2010-10-26 Vancouver 2010 release, RC2 (Archived) | 10/26/2010 | 12/06/2010 | OWL |
| 2009-11-06 Philly (aka version 1.0) Release Candidate (Archived) | 11/06/2009 | 11/10/2009 | OWL |
| 1.0.1423 (Archived) | 01/28/2009 | 05/14/2009 | OWL |
| 1.0.1213 (Archived) | 11/28/2008 | 01/05/2009 | OWL |
| 1.0.967 (Archived) | 09/26/2008 | 09/24/2008 | OWL |
| 1.0.871 (Archived) | 07/25/2008 | 09/19/2008 | OWL |
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- NIAID GSC and BRC View
- It is a subset of OBI containing all terms representing NIAID GSCID and BRC Core Metadata.
- OBI Device branch
- Subset of OBI that contains the term obi:device and all children terms.
- FGED View
- Subset of OBI terms of interest to the Functional Genomics Data (FGED) Society
- IEDB View
- OBI view for IMMUNE EPITOPE DATABASE (IEDB) community. The OBI terms used by IEDB were tagged by inSubSet annotation with the value "IEDB". The IEDB friendly labels were provided as IEDB alternative term.
| Classes | 5,219 |
| Individuals | 303 |
| Properties | 100 |
| Maximum depth | 16 |
| Maximum number of children | 331 |
| Average number of children | 4 |
| Classes with a single child | 483 |
| Classes with more than 25 children | 34 |
| Classes with no definition | 173 |
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