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Basic Formal Ontology

top-level ontology developed to promote interoperability among domain ontologies
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Basic Formal Ontology

Summary

Basic Formal Ontology is an ontology[1]. It is known by 5 alternative names across languages and contexts.[2]

Key Facts

  • Basic Formal Ontology authored Barry Smith[3].
  • Basic Formal Ontology's instance of is recorded as ontology[4].
  • Basic Formal Ontology's instance of is recorded as upper ontology[5].
  • Basic Formal Ontology's instance of is recorded as knowledge graph[6].
  • Basic Formal Ontology's maintained by is recorded as Barry Smith[7].
  • Basic Formal Ontology's copyright license is recorded as Creative Commons Attribution 4.0 International[8].
  • Basic Formal Ontology is part of Open Biological and Biomedical Ontology Foundry Ontologies[9].
  • Basic Formal Ontology is part of BLOD: Biomedical Linked Open Datasets[10].
  • Basic Formal Ontology's catalog code is recorded as bfo[11].
  • Basic Formal Ontology's catalog code is recorded as bfo11[12].
  • Basic Formal Ontology's contributor to the creative work or subject is recorded as Stefan Schulz[13].
  • Basic Formal Ontology's contributor to the creative work or subject is recorded as Jie Zheng[14].
  • Basic Formal Ontology's contributor to the creative work or subject is recorded as Melanie Courtot[15].
  • Basic Formal Ontology's contributor to the creative work or subject is recorded as Janna Hastings[16].
  • Basic Formal Ontology's contributor to the creative work or subject is recorded as James A. Overton[17].
  • Basic Formal Ontology's contributor to the creative work or subject is recorded as Charles Tapley Hoyt[18].
  • Basic Formal Ontology's contributor to the creative work or subject is recorded as Alan Ruttenberg[19].
  • Basic Formal Ontology's contributor to the creative work or subject is recorded as Christopher J. Mungall[20].
  • Basic Formal Ontology's contributor to the creative work or subject is recorded as Niels Grewe[21].
  • Basic Formal Ontology's official website is recorded as http://ifomis.org/bfo/[22].
  • Basic Formal Ontology's official website is recorded as http://basic-formal-ontology.org/[23].
  • Basic Formal Ontology's official website is recorded as https://bfo-ontology.github.io/[24].
  • Basic Formal Ontology's source code repository URL is recorded as https://github.com/bfo-ontology/BFO-2020[25].
  • Basic Formal Ontology's described by source is recorded as Q109302681[26].
  • Basic Formal Ontology's described by source is recorded as Functions in Basic Formal Ontology[27].

Body

Geography

Part of include Open Biological and Biomedical Ontology Foundry Ontologies[9] and BLOD: Biomedical Linked Open Datasets[10], a health care[28].

Designation and Status

Recorded instance of include ontology[4], upper ontology[5], and knowledge graph[6].

History and Context

Catalog codes include bfo[11] and bfo11[12].

Why It Matters

Basic Formal Ontology is known by 5 alternative names across languages and contexts.[2]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [4] ↑ . wikidata.org.
  2. [5] ↑ . wikidata.org.
  3. [6] ↑ . wikidata.org.
  4. [3] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . wikidata.org.
  10. [12] ↑ . wikidata.org.
  11. [13] ↑ . wikidata.org.
  12. [14] ↑ . wikidata.org.
  13. [15] ↑ . wikidata.org.
  14. [16] ↑ . wikidata.org.
  15. [17] ↑ . wikidata.org.
  16. [18] ↑ . wikidata.org.
  17. [19] ↑ . wikidata.org.
  18. [20] ↑ . wikidata.org.
  19. [21] ↑ . wikidata.org.
  20. [22] ↑ . wikidata.org.
  21. [23] ↑ . wikidata.org.
  22. [24] ↑ . wikidata.org.
  23. [25] ↑ . wikidata.org.
  24. [26] ↑ . wikidata.org.
  25. [27] ↑ . wikidata.org.

Inline context (facts about related entities)

  1. [28] ↑ . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Basic Formal Ontology. Retrieved May 3, 2026, from https://4ort.xyz/entity/basic-formal-ontology
MLA “Basic Formal Ontology.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/basic-formal-ontology.
BibTeX @misc{4ortxyz_basic-formal-ontology_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Basic Formal Ontology}}, year = {2026}, url = {https://4ort.xyz/entity/basic-formal-ontology}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Basic Formal Ontology — https://4ort.xyz/entity/basic-formal-ontology (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/basic-formal-ontology · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 15d ago · عُثمان · 2026-08-30 view diff on Wikidata ↗
    Official website → http://ifomis.org/bfo/, http://basic-formal-ontology.org/, https://bfo-ontology.github.io/
    "/* wbsetclaim-create:2||1 */ [[Property:P856]]: https://bfo-ontology.github.io/"
  2. 5w ago · Mahir256 · 2026-08-10 view diff on Wikidata ↗
    Maintained by → Barry Smith
    Source code repository url → https://github.com/bfo-ontology/BFO-2020
    Imported from → —
    Copyright license → Creative Commons Attribution 4.0 International
    + 21 other properties edited (see Wikidata diff for full list)
    "/* wbmergeitems-from:0||Q138523126 */ #quickstatements; #temporary_batch_1786327209400"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.