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SDF (Semantic Definition Format) for IoT data models

SDF RFCs (1)

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RFC 9880: Semantic Definition Format (SDF) for Data and Interactions of Things
Proposed Standard
M. Koster
C. Bormann
A. Keränen
January 2026
IETF publication
Applications and Real-Time Area
Abstract
The Semantic Definition Format (SDF) is a format for domain experts to use in the creation and maintenance of data and interaction models that describe Things, i.e., physical objects that are available for interaction over a network. An SDF specification describes definitions of SDF Objects/SDF Things and their associated interactions (Events, Actions, and Properties), as well as the Data types for the information exchanged in those interactions. Tools convert this format to database formats and other serializations as needed.
Abstract
The Semantic Definition Format (SDF) is a format for domain experts to use in the creation and maintenance of data and interaction models that describe Things, i.e., physical objects that are available for interaction over a network. An SDF specification describes definitions of SDF Objects/SDF Things and their associated interactions (Events, Actions, and Properties), as well as the Data types for the information exchanged in those interactions. Tools convert this format to database formats and other serializations as needed.

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