IEC SO/IEC21823-3 ISO Edition 1.0 2021-09 INTERNATIONAL STANDARD colour inside Internet of Things (loT)-Interoperability forloT systems- Part 3:Semantic interoperability ISO/IEC 21823-3:2021-09(en THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright @ 2021 ISO/IEC, Geneva, Switzerland either IEc or IEC's member National Committee in the country of the requester. If you have any questions about iso/lEC copyright or have an enquiry about obtaining additionai rights to this publication, please contact the address below or your local IEC member National Committee for further information. IECCentralOffice Tel.: +41 22 919 02 11 3,rue de Varembé [email protected] CH-1211 Geneva 20 www.iec.ch Switzerland About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related technologies. About IEC publications latestedition,a corrigendumoranamendmentmighthavebeenpublished IECpublicationssearch-webstore.iec.ch/advsearchform IEconlinecollection-oc.iec.ch The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the varietyofcriteria(referencenumber, text,technical publications previews. With a subscription you will always committee, ...). It also gives information on projects, replaced have access to upto date content tailored to your needs. and withdrawn publications. Electropedia -www.electropedia.org IEC JustPublished-webstore.iec.ch/justpublished The world's leading online dictionary on electrotechnology, Stay up to date on all new IEC publications. Just Published containing more than 22 000 terminological entries in English details all new publications released. Available online and and French, with equivalent terms in 18 additional languages. once a month by email. Also known as the International Electrotechnical Vocabulary (IEV) online. IEC Customer Service Centre - webstore.iec.ch/csc If you wish to give us your feedback on this publication or needfurtherassistance,please contactthe CustomerService Centre: [email protected].