GCRI · Registry

Interoperabilität der Register

Registries are only as useful as the links between them. A record that cannot be referenced stably, exported faithfully or read by another system becomes an island, and islands drift apart. This page sets out how stable references, persistent identifiers, metadata crosswalks, export formats and interface semantics let registries exchange records without losing meaning, and how interoperability fails through link rot, lossy mapping and undocumented change.

01Arbeitsfläche

Wie die Arbeit abläuft.

System · rund um dieses ThemaBeispielhaft

Interoperability console

Registry interoperability · Crosswalk · Profile v3

Test suite runningGCRI · Registry

Field mappings

BezeichneridcopyBestanden
evidence_labelquality.labelenum mapBestanden
licencerights.licenceSPDX idAmbiguous
versionversionsemverBestanden

Konformität

Required fields92 of 100 requiredControlled terms89 of 95 requiredRound trip98 of 95 required
Interoperability console: the screen’s structure, terms and states for Registry interoperability.Beispielnamen und beispielhafte Werte; ein Entwurf, kein Eintrag und kein Live-System.

Abb.Interoperability console: example names and illustrative values, not a record or a live system.

02Die Frage

Registry interoperability: how the risk develops.

Stable references, exports and API semantics. The dossier below sets out how the risk develops, what is measured, where the data come from, how it is modelled and who decides.

Mechanismus

Link rot and content drift

Location links break when sites are reorganised, and links that still resolve may point to changed content. Without persistent identifiers and archived snapshots, references silently stop meaning what their authors intended.

Mechanismus

Lossy crosswalks

Mapping one schema to another drops fields with no equivalent and flattens distinctions, such as several contributor roles folded into one. Round trips lose information, and each exchange makes the copies less alike.

Mechanismus

Undocumented interface change

An interface changes a field’s meaning, format or default without a version or notice. Consumers keep parsing successfully while reading the wrong thing, and the errors surface far from the change that caused them.

Mechanismus

Identity collision across registries

The same organisation, person or work carries different identifiers in different registries, or a local identifier is reused for different things. Joins across Systeme then merge what is distinct or split what is one.

03Methoden und Evidenz

How registry interoperability is modelled, measured and tested.

Das Modell, seine Annahmen, seine Daten und seine Unsicherheit in der Form, in der eine Wissenschaftlerin oder ein Ingenieur sie prüfen würde. Die Strukturen folgen veröffentlichten Methoden. Die dargestellten Werte sind illustrativ, keine Befunde.

Datensätze und Herkunft

The data classes behind registry interoperability and what is recorded about each before it is used.

DatenklasseHerkunft erfasstAuflösung angegebenLizenz geprüft
Satellitenbilder, optisch und RadarSensor, Verarbeitungsstufe, AufnahmedatumPixelgröße und Wiederholratepro Szene
Reanalysen und KlimamodellausgabenModell, Experiment, Member, VersionGitter und Zeitschrittje Veröffentlichung
In-situ-Sensoren und PegelStation, Instrument, KalibrierprotokollMesspunkt und Abtastrateje Netz
Exposition von Bevölkerung und AnlagenMethode, Jahrgang, EingangsquellenZellgröße und Einheitje Veröffentlichung
Grenzen und ReferenzgeografieHersteller, Ausgabe, DatumSkalaje Ausgabe
Herkunftskette
W3C-PROV-Eintrag von der Quelle zur Abbildung
Grundsätze
FAIR: auffindbar, zugänglich, interoperabel, wiederverwendbar
Lücken
als fehlend angezeigt, nie stillschweigend ergänzt
Datenklassen und die für jede erfassten Herkunftsfelder; ein Datensatz wird erst dann namentlich aufgeführt, wenn seine Lizenz die Nutzung zulässt.
FAIR-Leitprinzipien · GO FAIR und FORCE11W3C PROV · World Wide Web ConsortiumHinweise zur einheitlichen Behandlung von Unsicherheiten · IPCCCEOS Analysis Ready Data · Committee on Earth Observation Satellites
04In the five domains

Interoperability lets records from each domain move between systems.

05Indikatoren

Was gemessen wird und wie gut.

Jeder Indikator trägt seine Einheit, seinen Rhythmus, die Art der zugrunde liegenden Quelle und die Evidenzkennzeichnung, die ein Wert tragen würde. Es werden keine Werte gezeigt: Ein Programm liefert sie unter seiner eigenen Autorität.

IndikatorEinheitTaktQuellentypKennzeichnung
Identifier resolution successshare of resolution probestäglichResolver probesBEOBACHTET
Interface availabilityshare of time availablekontinuierlichAvailability monitoringBEOBACHTET
Export schema conformanceshare of exported records validatingje VeröffentlichungSchema validationBEOBACHTET
Crosswalk coverageshare of fields mapped to the target schemaje VeröffentlichungCrosswalk registerDEKLARIERT
Round-trip fidelityshare of records returned intactje VeröffentlichungRound-trip testBEOBACHTET
Broken outbound referencesshare of referencesmonatlichLink checkingBEOBACHTET
Deprecation notice periodTageper interface changeChange logDEKLARIERT
Records linked to external persistent identifiersshare of recordsmonatlichIdentifier reconciliationBEOBACHTET
06Quellen

Woher die Evidenz stammt.

Benannte öffentliche Datensätze und institutionelle Aufzeichnungen, jeweils mit ihrer Lizenzklasse. Quellen auf Vereinbarungsbasis werden nur zu ihren Bedingungen genutzt und niemals weiterveröffentlicht.

QuelleWas es liefertLizenzklasse
DCAT version 3A vocabulary for catalogues, datasets, data services and versions in exchangeW3C document licence, free to implement
Schema.orgA shared vocabulary for embedding structured metadata in web pagesCC BY-SA for the vocabulary
OAI-PMHA protocol for harvesting metadata from repositoriesOpen specification
Scholix link exchangeA framework and services for exchanging links between literature and dataCC0 for link metadata
re3data registry of research data repositoriesDescriptions of repositories with their standards, identifiers and access policiesCC0 for metadata
FAIRsharingA curated registry of standards, databases and policies and their relationshipsCC BY-SA for content
OpenAIRE GraphAn open graph linking publications, data, software, projects and organisations across sourcesCC BY
OpenAPI-SpezifikationA standard description format for HTTP interfacesOpen specification, Apache licence
07Entscheidungen

Wer entscheidet und wozu die Evidenz dient.

Registry prepares evidence. The decisions below are taken by the authorities named, under their own rules, and never by the platform.

Wer entscheidetDie FrageEvidenz, der diese Seite dient
Registry and repository managersWhich schemas, identifiers and interfaces to support, and on what deprecation timetableCrosswalk coverage, round-trip losses and the consumers depending on each interface
Research infrastructure fundersWhether to fund integration with an existing registry or a new parallel systemInteroperability measures, standard conformance and existing link coverage
Daten-SachwalterWhether imported records can be merged with local onesIdentifier matches, crosswalk losses and conflicts between sources
National statistics offices and public data portalsWhether registry exports can feed published cataloguesDCAT conformance, licence metadata and the stability of identifiers

Ergebnisse, die dieses Thema hervorbringt

  • Stable references for every record, resolving to a current view and its versions
  • Exports in documented formats with schema files and published crosswalks
  • An interface change log with version numbers and deprecation notices
  • Round-trip tests against external registry schemas with every loss listed
08Kernfragen

What experts ask about interoperability.

  • How should identifiers from different registries be linked without copying records?
  • Which open formats preserve meaning, provenance and rights when records are exported?
  • How are field meanings documented so that two Systeme agree on what a value means?
  • How do interfaces signal that a record has changed or been withdrawn?
  • How are schema changes made without breaking systems that depend on them?
09Mechanismen

Why exchange fails.

Interoperability fails at three levels. Technically, formats and protocols do not match. Semantically, the same field name means different things, so a status of active or a date of publication is silently misread. Organisationally, no one is responsible for keeping links current, so references decay. Semantic failures are the hardest to see because the data moves without error and is simply wrong at the destination.

Shared vocabularies address these. Linked-data formats such as JSON-LD carry meaning with the data, catalogue vocabularies such as DCAT describe datasets, and W3C PROV carries lineage. Methods from Datentechnik, Interoperabilität und Datenverwaltung cover these standards and their trade-offs. The Registry’s planned interfaces are described on interfaces.

10Methoden und Grenzen

Designing for exchange.

  1. 01

    Link, do not copy

    Records refer to external registries by identifier, preserving aliases so an external reference still resolves.

  2. 02

    Documented semantics

    Each field’s meaning, allowed values and version are published alongside any interface.

  3. 03

    Versioned schemas

    Schema changes take a new version, and older records keep the schema they were made under.

  4. 04

    Grenzen

    Interoperability depends on partners maintaining their own records. Mappings between vocabularies lose nuance, and an export carries rights obligations that the receiving system must honour.

11Methoden

Wie es untersucht wird und was die Methoden nicht sagen können.

  1. Datentechnik, Interoperabilität und DatenverantwortungSchemavalidiertes Einlesen · Abgleich persistenter Identifikatoren · Erfassung der Herkunftskette in PipelinesHier angewandt
  2. Cybersicherheit und KryptografieManipulationssichere Änderungshistorie · Signierte Exporte und Freigaben · Bedrohungsmodellierung der BearbeitungswegeHier angewandt
  3. Digitale Identität und öffentliche digitale SystemeAuthentifizierung und Befugnis des Ausstellers · Eindeutige Zuordnung von Beitragenden durch die Person selbstHier angewandt
12Where this page’s references

Where this page’s references lead.

Die Gremien und Dokumente, vor deren Hintergrund diese Seite gelesen wird. Status und Ausgaben ändern sich; jeder Link führt zur herausgebenden Stelle.

13Fragen

Fragen und Antworten.

What makes a reference stable?
A persistent identifier, managed by an organisation that commits to keep it resolving, together with versioning, so a citation can point to the exact state of the record that was used.
Why not just use web addresses?
Locations change when sites are restructured or move. A persistent identifier separates the name of a record from its location, so the name survives the move.
What is a crosswalk?
A documented mapping between two metadata schemas. A good crosswalk lists which fields map exactly, which approximately and which have no equivalent, so users know what an exchange will lose.
How are interface changes announced?
Through a versioned change log and a deprecation notice period, so consumers can adapt before an old behaviour is removed. Silent changes to meaning are treated as defects.
Is there an interface I can use now?
No interface is released yet. Each opens with its documentation and terms, and is listed on the interfaces page when it does.
Will exports include restricted records?
No. Interfaces and exports cover public records only, and carry each record’s licence and limits.
Can my registry link to registry records?
Linking by public identifier is the intended approach. To discuss deeper exchange, write to das Kontaktformularbekunden; die Eingangsbestätigung nennt eine Referenz und den nächsten Schritt.
BerichteBeitragen

Evidenz von dieser Seite aus beitragen.

Berichte is the Consortium’s quarterly publication. What you know about this subject can become evidence, a case or a correction in the next edition, credited to you and published under CC BY 4.0 where it is your own work.

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