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Ontology for Biomedical Investigations

Last uploaded: May 19, 2026






Details
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
Experimental Conditions
Groups
OBO Foundry
Bibliographic reference
http://purl.obolibrary.org/obo/obi/Technical_Reports
http://purl.obolibrary.org/obo/obi/Technical_Reports
Contact
Bjoern Peters ([email protected])
Creation date
May 19, 2026
Deprecated
false See more...
Documentation
http://purl.obolibrary.org/obo/obi/wiki See more...
Homepage
http://purl.obolibrary.org/obo/obi See more...
License
Creative Commons 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. See more...
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
Root of obsolete branch
http://www.geneontology.org/formats/oboInOwl#ObsoleteClass
http://www.geneontology.org/formats/oboInOwl#ObsoleteClass
Subject
An ontology for the annotation of biomedical and functional genomics experiments. See more...
Submission date
May 19, 2026
Version IRI
http://purl.obolibrary.org/obo/obi/2026-05-08/obi.owl
http://purl.obolibrary.org/obo/obi/2026-05-08/obi.owl
Version information
2026-05-08 See more...
uri
http://purl.obolibrary.org/obo/obi.owl
http://purl.obolibrary.org/obo/obi.owl
Submissions
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
more...
Views of OBI
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.
Metrics
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
Visits
Projects using OBI

Adverse Event Reporting Ontology

An Ontology for Drug Discovery Investigations

Beta Cell Genomics database

Bioinformatics Web Service Ontology

Blood Ontology

eagle-i

Electrophysiology Ontology

Evidence Ontology

FGED-MGED Ontology

Gemma

Immune Epitope Database

Immunology Database and Analysis Portal

Influenza Ontology

Influenza Research Database

Integrative Tools for Protozoan Parasite Research

ISA software suite

Maggot

MeRy-B

Neural ElectroMagnetic Ontologies

Neuroscience Information Framework

NGS Ontology

Ontology for the obstetric and neonatal domain

Ontology of Data Mining

Virus Pathogen Resource

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The National Center for Biomedical Ontology was founded as one of the National Centers for Biomedical Computing, supported by the National Human Genome Research Institute, the National Heart Lung Blood Institute, and the NIH Common Fund under grant U54-HG004028. The resource is now supported in part by grant 5U24GM143402 from the National Institute of General Medical Sciences.
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