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📌 Introduction

In this section, we describe the basics of metadata and explain what metadata mapping is. We also look at the Health-RI Core Metadata Schema and the metadata standards it builds upon. This page is intended for a general audience. For details on the standards and the schema, please visit the github specifications dedicated for data experts or data stewards https://github.com/Health-RI/health-ri-metadata/ .

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Below is an example of metadata from the PRISMA study. It contains information about the data available:

Class

Property

Property Label

Description/

Example

dcat:

Catalogue

dcat:dataset

dataset

Personalised RISk-based MAmmascreening Study (PRISMA)

Catalog

dct:description

Description

This catalog describes the core metadata of Radboudumc datasets

The primary aim of the PRISMA study is to investigate the potential value of risk-tailored versus traditional breast cancer screening protocols in the Netherlands. Data collection took place between 2014-2019, resulting in ∼67,000 mammograms, ∼38,000 surveys, ∼10,000 blood samples and ∼600 saliva samples.
dct:publisher	Publisher

https://ror.org/05wg1m734

foaf:Agent
dct:title	Title

Radboudumc Core Metadata

Personalised RISk-based MAmmascreening Study (PRISMA)
dcat:Dataset	dcat:

ContactPoint

contactPoint

Contact Point

foaf

vcard:

agent

Kind
dct:creator	Creator

name

foaf:

agent

Agent
dct: description	Description	The

primary aim of the PRISMA study was to investigate the potential value of risk-tailored versus traditional breast cancer screening protocols in the Netherlands. Data collection took place between 2014-2019, resulting in ∼67,000 mammograms, ∼38,000 surveys, ∼10,000 blood samples and ∼600 saliva samples

extensive questionnaire covers a number of potential breast cancer risk predictors such as demographics, personal characteristics, reproductive characteristics, medication, lifestyle, health status, family history, psychosocial characteristics.

dct:issued

Issued

15/01/2024

Release date	2024-07-02T10:49:07
dct: identifier	Identifier	https://fdp.radboudumc.nl/dataset/

8793226e

9a7c

4e8c

9cef

fce41ef0b865

855838d3f9cc
dct:modified	Modified

15/01/2024

2024-09-09T08:54:32
dct:publisher	Publisher	foaf:

agent

Agent
dcat:theme	Theme	http://

purl

publications.

obolibrary

europa.

org

eu/

obo/MONDO_0007254, http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C20116

resource/authority/data-theme/HEAL
dct:title	Title

Personalised RISk-based MAmmascreening Study (PRISMA)

PRISMA Questionnaire data

dct:

type

license

Type

License

http

purl

org

dc

dcmitype/Dataset

dct:license

License

Not yet available

dua/RUMC-RA-DUA-1.0.html
dcat:Distribution	dcat:accessURL	Access URL	DOI (not yet available)
	dcat:

MediaType

mediaType

Format

https://www.iana.org/assignments/media-types/text/

csv

csv
dcat:title	Title	PRISMA Questionnaire data - CSV format
dcat:description	Description	The

extensive questionnaire covers different topics such as demographics, personal characteristics, reproductive characteristics, medication, lifestyle, health status, family history, psychosocial characteristics

questionnaire data in CSV format.
foaf:Agent	foaf:name	name	Radboudumc (Publisher)
foaf:Agent	dct:identifier	identifier

mailto:contact@radboudumc.nl

https://ror.org/05wg1m734 (Publisher)
vcard:Kind	vcard:hasEmail	has email	firstname.lastname@radboudumc.nl
vcard:Kind	vcard:hasName	has name	J. Doe
foaf:Agent	foaf:name	name	J. Doe (Creator)
foaf:Agent	dct:identifier	identifier	https://orcid.org/0000-0000-0000-0000 (Creator)

Here is the same data mapped towards the Health-RI metadata core. It contains the same information, however, now this data can be easily processed by a computer is machine readable and is in a format that is common for many places on the web.

Code Block

@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

# Catalog description
<https://fdp.radboudumc.nl/catalogue/catalogue>prisma>
    a dcat:Catalog ;
    dct:title "Radboudumc Core MetadataPersonalised RISk-based MAmmascreening Study (PRISMA)" ;
    dct:description "This catalog describesThe primary aim of the PRISMA study is to investigate the corepotential metadata of Radboudumc datasetsvalue of risk-tailored versus traditional breast cancer screening protocols in the Netherlands. Data collection took place between 2014-2019, resulting in ∼67,000 mammograms, ∼38,000 surveys, ∼10,000 blood samples and ∼600 saliva samples." ;
    dct:publisher [ a foaf:Agent ; foaf:name "Radboudumc (Publisher)" ; dct:identifier <https://ror.org/05wg1m734> ] ;
    dcat:dataset <https://fdp.radboudumc.nl/dataset/8793226e37d6ad17-9a7caa35-4e8c425c-9cef946e-fce41ef0b865>855838d3f9cc> .

# Dataset description
<https://fdp.radboudumc.nl/dataset/8793226e37d6ad17-9a7caa35-4e8c425c-9cef946e-fce41ef0b865>855838d3f9cc>
    a dcat:Dataset ;
    dct:title "PersonalisedPRISMA RISk-based MAmmascreening Study (PRISMA)Questionnaire data" ;
    dct:description "The primaryextensive aimquestionnaire ofcovers thea PRISMAnumber study was to investigate the potential value of risk-tailored versus traditional of potential breast cancer screeningrisk protocolspredictors insuch theas Netherlands.demographics, Datapersonal collectioncharacteristics, tookreproductive placecharacteristics, between 2014-2019medication, lifestyle, resultinghealth in ∼67,000 mammograms, ∼38,000 surveys, ∼10,000 blood samples and ∼600 saliva samples."status, family history, psychosocial characteristics." ;
    dct:issued "2024-07-02T10:49:07"^^xsd:dateTime ;
    dct:issuedmodified "2024-01-1509-09T08:54:32"^^xsd:datedateTime ;
    dct:identifier <https://fdp.radboudumc.nl/dataset/8793226e37d6ad17-9a7caa35-4e8c425c-9cef946e-fce41ef0b865>855838d3f9cc> ;
    dct:modified "2024-01-15"^^xsd:datecreator [ a foaf:Agent ; foaf:name "J. Doe (Creator)" ; dct:identifier <https://orcid.org/0000-0000-0000-0000> ] ;
    dct:publisher [ a foaf:Agent ; foaf:name "Radboudumc (Publisher)" ; dct:identifier <https://ror.org/05wg1m734> ] ;
    dcat:theme <http://purlpublications.obolibraryeuropa.orgeu/obo/MONDO_0007254>, <http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C20116>resource/authority/data-theme/HEAL> ;
    dct:typelicense <http<https://purldata.ru.orgnl/dcdoc/dcmitype/Dataset>dua/RUMC-RA-DUA-1.0.html> ;
    dctdcat:license "Not yet available" distribution <https://fdp.radboudumc.nl/distribution/csv> ;
    dcat:distributioncontactPoint [
        a dcatvcard:DistributionKind ;
        dcatvcard:accessURLhasEmail <doi:not_yet_available><mailto:firstname.lastname@radboudumc.nl> ;
        dcatvcard:mediaTypefn "text/csvJ. Doe"
;    ] .

# Distribution details (CSV)
dcat:title "PRISMA Questionnaire data" ;
   <https://fdp.radboudumc.nl/distribution/csv>
    a dcat:Distribution ;
    dcat:description "The extensive questionnaire covers different topics such as demographics, personal characteristics, reproductive characteristics, medication, lifestyle, health status, family history, psychosocial characteristics."
    ] ;
    dcat:ContactPoint [
   accessURL <doi:not_yet_available> ;
    dcat:mediaType <https://www.iana.org/assignments/media-types/text/csv> ;
    dcat:title "PRISMA Questionnaire data - CSV format" ;
    dcat:description "The questionnaire data in CSV format." .

# Agent description (Publisher)
<https://ror.org/05wg1m734>
    a foaf:Agent ;
        foaf:name "Radboudumc (Publisher)" ;
        vcard:hasEmail <mailto:contact@radboudumc.nl>
    ] .

dct:identifier <https://ror.org/05wg1m734> .

# Agent description (Creator)
<https://rororcid.org/05wg1m734>0000-0000-0000-0000>
    a foaf:Agent ;
    foaf:name "RadboudumcJ. Doe (Creator)" ;
    dct:identifier <https://rororcid.org/05wg1m734>0000-0000-0000-0000> .

To map your metadata you first need to understand the structure of your metadata and their semantic meaning and the ontology (vocabulary) used to to describe your data in a Resource Description Framework (RDF), in our case DCAT V3, format. The general outline of the mapping pipeline can be found here: https://health-ri.atlassian.net/wiki/spaces/FSD/pages/edit-v2/290291734?draftShareId=ff45a2e2-80ee-49aa-b6d6-c04dedb6f9f8

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Key

📌 Introduction