Overview
ISO/IEC 21823-1:2019 - Internet of Things (IoT) - Interoperability for IoT systems - Part 1: Framework defines a high-level framework and common terminology for achieving interoperability between IoT systems and their entities. The standard explains how IoT entities can exchange information and mutually use that information efficiently, enabling peer‑to‑peer interoperability between separate IoT systems. It is aligned with the IoT reference architecture in ISO/IEC 30141 and provides the foundational concepts for subsequent parts of the ISO/IEC 21823 series.
Key topics
- Interoperability definition and scope: Common understanding of interoperability as the ability of two or more systems to exchange information and mutually use it.
- Facet model for interoperability: Five principal facets are defined and described:
- Transport interoperability (communication infrastructure)
- Syntactic interoperability (data formats and structures)
- Semantic interoperability (shared meaning and data models)
- Behavioural interoperability (expected outcomes and interactions)
- Policy interoperability (legal, organizational and policy constraints)
- IoT characteristics and considerations: Discussion of network communication, self‑description, discoverability, network connectivity, unique identification, legacy system support, heterogeneity, and compliance.
- Security considerations: High‑level treatment of confidentiality, integrity and protection of personally identifiable information (PII) as they affect interoperability.
- Framework and entity interactions: Context for interoperability within and between IoT systems and how IoT entities interact based on the IoT reference architecture.
Practical applications
ISO/IEC 21823-1:2019 is intended for stakeholders designing, deploying or integrating IoT systems who need a common interoperability framework:
- System architects and solution designers - to plan interoperable architectures and interfaces.
- IoT platform and middleware vendors - to align products with standard interoperability facets.
- Device manufacturers and gateway developers - to ensure devices can participate in interoperable ecosystems.
- Integrator and service providers - to enable peer‑to‑peer data exchange across disparate IoT systems.
- Policy makers and procurement teams - to specify interoperability requirements and compliance criteria.
- Test labs and certification bodies - to develop test cases based on interoperability facets.
Benefits include reduced integration costs, improved reusability of IoT components, clearer semantics for data sharing, and facilitated multi‑vendor deployments.
Related standards
- ISO/IEC 30141 - IoT Reference Architecture (normative reference in ISO/IEC 21823-1)
- Other parts of the ISO/IEC 21823 series - address specific interoperability facets (transport, syntactic, semantic, behavioural, policy) and provide implementation guidance.
Keywords: ISO/IEC 21823-1:2019, IoT interoperability, interoperability framework, semantic interoperability, transport interoperability, IoT reference architecture.
