ISO 16684-4:2024

Name: ISO 16684-4:2024 — Graphic technology — Extensible metadata platform (XMP) specification — Part 4: Use of XMP for semantic units
SKU: ISO 16684-4:2024
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Graphic technology — Extensible metadata platform (XMP) specification — Part 4: Use of XMP for semantic units

Название (английский):

ISO 16684-4:2024

Graphic technology — Extensible metadata platform (XMP) specification — Part 4: Use of XMP for semantic units

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 13
Дата публикации:: 17 января 2024 г.
Издание:: ISO IS 16684 edition 1 version 1
ICS:: 35.240.30

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Описание (английский):

This document: a) introduces the concept of the semantic unit (SU); b) 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; c) provides requirements and guidance on the extensible metadata platform (XMP) serialization syntaxes for SU. This document broadens the concept of XMP specified in ISO 16684-1 so that XMP can be used to describe an 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.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 16684-4:2024 - Graphic technology - Extensible metadata platform (XMP) specification - Part 4: Use of XMP for semantic units defines how XMP can describe and reference fine-grained pieces of content called semantic units (SUs). The standard extends the XMP concepts in ISO 16684-1 so that metadata can target sub-file or cross-file content (characters, paragraphs, image areas, audio/video segments, datasets, IRIs). It adopts the Web Annotation Data Model “target” syntax and specifies XMP serialization requirements to improve interoperability for linked data, metadata exchange, and AI-driven content processing.

Key topics and technical requirements

Semantic unit (SU): a user-defined, meaningfully separable piece of content that can span files, pages, images, audio/video, or remote resources.

Targeting mechanism: SUs must enumerate one or more target resources as defined by the W3C Web Annotation Data Model (specificResource, source, selector).

Selectors and segmenting: selectors are used to identify segments of a source (e.g., paragraph, image region, time range) - multiple selector forms are supported depending on media type.

XMP serialization: requirements and guidance on XMP packet syntaxes for SUs, including JSON-LD serialization conventions (see ISO 16684-3).

Required XMP keywords for SU packets: @id, @context, @vocab, @language, @type, and target (and its qualifiers).

Interoperability focus: aligns XMP with Web Annotation vocabulary to allow consistent referencing, dereferencing, and cross-system metadata exchange.

Use cases and examples: digitized books, image regions, multimedia fragments, and composite SUs combining multiple resource types.

Applications and who should use it

Publishers and digital libraries: fine-grained descriptive and preservation metadata for chapters, figures, tables, and scanned materials.

Archivists and repository managers: robust cross-file references and long-term metadata for digital preservation.

Metadata specialists and standards architects: consistent XMP-based metadata models that integrate with linked data and JSON-LD.

Developers and software vendors: implementers of content management systems, annotation tools, and multimedia platforms needing precise targeting and serialization.

AI and data scientists: training data annotation, content segmentation, and semantic enrichment pipelines that leverage granular, machine-actionable metadata.

Related standards

ISO 16684-1:2019 - XMP data model, serialization and core properties

ISO 16684-3:2021 - JSON-LD serialization of XMP

W3C Web Annotation Data Model (2017) - target and selector vocabulary

Keywords: ISO 16684-4:2024, XMP, semantic unit, Web Annotation Model, XMP serialization, JSON-LD, metadata, linked data, digital preservation, content reuse, AI.

ISO 16684-4:2024

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and who should use it

Related standards

Технические детали

ISO 16684-1:2019

Graphic technology — Extensible metadata platform (XMP) — Part 1: Data model, serialization and core properti…

ISO 16684-3:2021

Graphic technology — Extensible metadata platform (XMP) specification — Part 3: JSON-LD serialization of XMP

BS ISO 16684-1:2019

Graphic technology. Extensible metadata platform (XMP). Data model, serialization and core properties.

BS ISO 16684-3:2021

Graphic technology. Extensible metadata platform (XMP) specification. JSON-LD serialization of XMP.