INTERNATIONAL ISO/IEC STANDARD 21838-2 First edition 2021-11 Information technology - Top-level ontologies (TLO) - Part 2: Basic Formal Ontology (BFO) Technologies de I'information - Ontologies de haut-niveau (TLO) - Partie 2: Ontologie formelle de base (BFO) Reference number IEC IS0/IEC 21838-2:2021(E) ISO @IS0/IEC2021 IS0/IEC 21838-2:2021(E) COPYRIGHT PROTECTED DOCUMENT @IS0/IEC2021 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may the internet or an intranet, withoutpriorwrittenpermission.Permission can be requested from eitherIso at the addressbelow orIso's memberbody inthe country oftherequester ISO copyright office CP 401 · Ch. de Blandonnet 8 CH-1214Vernier,Geneva Phone: +41 22 749 01 11 Email: [email protected] Website: www.iso.org PublishedinSwitzerland i @ IS0/IEC 2021 - All rights reserved