Basic formal ontology

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Basic Formal Ontology (BFO) is a top level ontology developed by Barry Smith and his associates for the purposes of promoting interoperability among domain ontologies that are built in its terms through a process of downward population.[1] The structure of BFO is based on a division of entities into two disjoint categories of continuant and occurrent, the former comprehending for example objects and spatial regions, the latter comprehending processes conceived as extended through (or as spanning) time. BFO thereby seeks to incorporate both three-dimensionalist and four-dimensionalist perspectives on reality within a single framework.


BFO has been adopted as a foundational ontology by over 300 ontology projects[2], principally in the areas of biomedical ontology and security and defense (intelligence) ontology.[1] An example application of BFO can be seen in the Ontology for Biomedical Investigations (OBI) and in the Open Biomedical Ontologies Foundry

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  1. ^ a b "Home". Basic Formal Ontology (BFO). Retrieved 20 December 2017.
  2. ^ "Users". Basic Formal Ontology (BFO). Retrieved 10 September 2018.

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