Standards & Interoperability / Concept
Internationalized Resource Identifier (IRI)
Definition
A globally unique identifier format used throughout xAPI to identify things such as Verbs, Activities, Activity types, extensions, and other vocabulary concepts. IRIs can contain international characters and include a scheme.
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Open this concept in the glossary →Editorial explanation
IRIs let independent systems refer to the same concepts without relying on local database identifiers, which is fundamental to semantic interoperability.
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Sources and evidence
- IEEE xAPI Base Standard — IEEE 9274.1.1-2023 §3.1 — Definitions: Internationalized Resource Identifier (IRI) (direct)
- IEEE xAPI Base Standard — IEEE 9274.1.1-2023 §5.2.7 — Additional Requirements for Data Types: IRIs (direct)