Internet of things (IoT) — Interoperability for IoT systems — Part 3: Semantic interoperability

This document provides the basic concepts for IoT systems semantic interoperability, as
described in the facet model of ISO/IEC 21823 -1, including:
– requirements of the core ontologies for semantic interoperability;
– best practices and guidance on how to use ontologies and to develop domain-specific
applications, including the need to allow for extensibility and connection to external
ontologies;
– cross-domain specification and formalization of ontologies to provide harmonized
utilization of existing ontologies;
– relevant IoT ontologies along with comparative study of the characteristics and
approaches in terms of modularity, extensibility, reusability, scalability, interoperability
with upper ontologies, and so on, and;
– use cases and service scenarios that exhibit necessities and requirements of semantic
interoperability.