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ISO 16684-4

Extensible metadata platform (XMP) – Part 4: Use of XMP for semantic units

This document broadens the concept of XMP specified in ISO 16684-1 so that XMP can be used to describe semantic units (SU). A new flexible way of defining and describing SUs aims to bring innovation to textual and non-textual content, metadata, linked data, big data and artificial intelligence.

  • introduces the concept of the semantic unit;
  • provides requirements and guidance on how to define the target resource(s) in an SU by adopting the “target” syntax from the Web Annotation Model;
  • provides requirements and guidance on the extensible metadata platform (XMP) serialization syntaxes for SU.

For more information, refer to the PDF Association’s Technical Resources.

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ISO Group Responsible: ISO TC171 SC2 WG12

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