GCRI · Registry

Interoperabilità dei registri

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.

01Canvas

Come si svolge il lavoro.

sistemi · intorno a questo temaIllustrativo

Interoperability console

Registry interoperability · Crosswalk · Profile v3

Test suite runningGCRI · Registry

Field mappings

identificatoreidcopySuperato
evidence_labelquality.labelenum mapSuperato
licencerights.licenceSPDX idAmbiguous
versionversionsemverSuperato

Conformità

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.Nomi di esempio e valori illustrativi; un progetto, non un registro né un sistema attivo.

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

02La domanda

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.

Meccanismo

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.

Meccanismo

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.

Meccanismo

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.

Meccanismo

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 sistemi then merge what is distinct or split what is one.

03Metodi ed evidenze

How registry interoperability is modelled, measured and tested.

Il modello, le sue ipotesi, i suoi dati e la sua incertezza, nella forma in cui uno scienziato o un ingegnere li verificherebbe. Le strutture seguono metodi pubblicati. I valori rappresentati sono illustrativi, non risultati.

Dataset e provenienza

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

Classe di datiProvenienza registrataRisoluzione indicataLicenza verificata
Immagini satellitari, ottiche e radarsensore, livello di elaborazione, data di acquisizionedimensione del pixel e rivisitazioneper scena
Rianalisi e output dei modelli climaticimodello, esperimento, membro, versionegriglia e passo temporaleper rilascio
Sensori e stazioni di misura in situstazione, strumento, registro di taraturapunto e frequenza di campionamentoper rete
Esposizione della popolazione e dei benimetodo, annata, fonti di inputdimensione e unità della cellaper rilascio
Confini e geografia di riferimentoproduttore, edizione, datascalaper edizione
Lignaggio
Record W3C PROV dalla fonte alla figura
Principi
FAIR: reperibili, accessibili, interoperabili, riutilizzabili
Lacune
mostrato come mancante, mai riempito in silenzio
Classi di dati e campi di provenienza registrati per ciascuna; un dataset è elencato per nome solo quando la sua licenza ne ammette l'uso.
Principi guida FAIR · GO FAIR e FORCE11W3C PROV · World Wide Web ConsortiumGuidance on consistent treatment of uncertainties · IPCCCEOS Analysis Ready Data · Comitato sui satelliti per l'osservazione della Terra
04In the five domains

Interoperability lets records from each domain move between systems.

05Indicatori

Cosa viene misurato e con quale accuratezza.

Ogni indicatore riporta la sua unità, la sua cadenza, il tipo di fonte su cui si basa e l'etichetta di evidenza che un valore riporterebbe. Non sono mostrati valori: un programma li fornisce sotto la propria autorità.

IndicatoreUnitàCadenzaTipo di fonteEtichetta
Identifier resolution successshare of resolution probesgiornalieroResolver probesOSSERVATO
Interface availabilityshare of time availablecontinuoAvailability monitoringOSSERVATO
Export schema conformanceshare of exported records validatingper rilascioSchema validationOSSERVATO
Crosswalk coverageshare of fields mapped to the target schemaper rilascioCrosswalk registerDICHIARATO
Round-trip fidelityshare of records returned intactper rilascioRound-trip testOSSERVATO
Broken outbound referencesshare of referencesmensileLink checkingOSSERVATO
Deprecation notice periodgiorniper interface changeChange logDICHIARATO
Records linked to external persistent identifiersshare of recordsmensileIdentifier reconciliationOSSERVATO
06Fonti

Da dove provengono le evidenze.

Set di dati pubblici e registri istituzionali specifici, ciascuno con la sua classe di licenza. Le fonti soggette ad accordo sono utilizzate solo alle relative condizioni e mai ripubblicate.

FonteCosa fornisceClasse di licenza
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
Specifica OpenAPIA standard description format for HTTP interfacesOpen specification, Apache licence
07Decisioni

Chi decide, e a cosa servono le evidenze.

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

Chi decideLa domandaEvidenze fornite da questa pagina
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
Custodi dei datiWhether 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

Output prodotti da questo argomento

  • 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
08Questioni centrali

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 sistemi 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?
09Meccanismi

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 ingegneria, interoperabilità e custodia dei dati cover these standards and their trade-offs. The Registry’s planned interfaces are described on interfaces.

10Metodi e limiti

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

    Limiti

    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.

11Metodi

Come viene studiato, e cosa i metodi non possono dire.

  1. Ingegneria, interoperabilità e gestione responsabile dei datiAcquisizione con convalida degli schemi · Riconciliazione degli identificatori persistenti · Registrazione della tracciabilità nelle pipelineApplicato qui
  2. Cybersicurezza e crittografiaCronologia dei registri a prova di manomissione · Esportazioni e rilasci firmati · Modellazione delle minacce dei percorsi di modificaApplicato qui
  3. Identità digitale e sistemi digitali pubbliciAutenticazione e autorità dell'emittente · Disambiguazione dei collaboratori da parte della persona stessaApplicato qui
12Where this page’s references

Where this page’s references lead.

Gli organismi e i documenti alla luce dei quali si legge questa pagina. Stato ed edizioni cambiano; ogni link porta all'organismo emittente.

13Domande

Domande e risposte.

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 il modulo di contatto; la conferma di ricezione fornisce un riferimento e indica il passo successivo.
RapportiContribuisci

Contribuisci con evidenze da questa pagina.

Rapporti 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.

GCRIRegistroMetodi e aspetti tecnici
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