ISO/IEC 21823-4:2022

Internet of Things (IoT) - Interoperability for IoT systems - Part 4: Syntactic interoperability

ISO/IEC 21823-3:2021

Internet of Things (IoT) - Interoperability for IoT systems - Part 3: Semantic interoperability

ISO/IEC 21823-2:2020

Internet of Things (IoT) - Interoperability for IoT systems - Part 2: Transport interoperability

ISO/IEC 21823-1:2019

Internet of Things (IoT) - Interoperability for IoT systems - Part 1: Framework