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v2026.1714 entries · CC-BY 4.0
Dictionary termTrack BStablev2026.2

ResourceSync

ANSI/NISO Z39.99: a framework for synchronising resources between a source server and one or more destination servers using Web-based sitemaps with extensions for change lists, incremental updates, and push notifications.

ByCASRAI Editorial Board
· Last updated 21 May 2026

Examples

Worked examples

  • Is an instance

    A repository publishing a Change List of newly-added items every five minutes for downstream subscribers.

  • Is an instance

    A multi-tier preservation pipeline using ResourceSync to keep replicas in step.

Counter-examples

Looks similar, but isn't

  • Not an instance

    Polling an OAI-PMH endpoint is not ResourceSync.

  • Not an instance

    A bespoke webhook with no Sitemap-style format is not ResourceSync.

Editorial commentary

ResourceSync was designed by the NISO ResourceSync working group as a modern alternative to OAI-PMH that exchanges resources (not only metadata) and that builds on the Sitemap protocol already widely used for Web crawler hinting. Documents in the ResourceSync framework include Resource List, Change List, Resource Dump, and Capability List. Push extensions allow source servers to notify destinations via HTTP POST when resources change.

References

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Also known as

ANSI/NISO Z39.99

Machine-readable encodings

Use in your systems

JATS XML <role> element
xml
<role vocab="credit"
      vocab-identifier="https://casrai.org/dictionary/"
      vocab-term="ResourceSync"
      vocab-term-identifier="https://casrai.org/dictionary/term/resourcesync" />
Schema.org DefinedTerm (JSON-LD)
json
{
  "@context": "https://schema.org",
  "@type": "DefinedTerm",
  "name": "ResourceSync",
  "identifier": "https://casrai.org/dictionary/term/resourcesync",
  "description": "ANSI/NISO Z39.99: a framework for synchronising resources between a source server and one or more destination servers using Web-based sitemaps with extensions for change lists, incremental updates, and push notifications.",
  "inDefinedTermSet": "https://casrai.org/dictionary/domain/research-information-systems-and-integration/",
  "url": "https://casrai.org/dictionary/term/resourcesync",
  "sameAs": [
    "ANSI/NISO Z39.99"
  ],
  "license": "https://creativecommons.org/licenses/by/4.0/"
}

Adopted by research universities worldwide

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  • University of Cambridge logo
  • Columbia University logo
  • University of Edinburgh logo
  • Harvard University logo
  • Massachusetts Institute of Technology logo
  • University of Oxford logo
  • Princeton University logo
  • Stanford School of Medicine logo
  • University College London logo

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