626bd3a095
- Apply Rule 39: RiC-O style hasOrHad*/isOrWas* for temporal slots - Apply Rule 43: Singular noun convention (keywords → keyword) - Update slot references to match renamed slot files - Maintain schema integrity across all class definitions
890 lines
37 KiB
YAML
890 lines
37 KiB
YAML
id: https://nde.nl/ontology/hc/class/WebPortal
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name: WebPortal
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imports:
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- linkml:types
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- ./WebPortalType
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- ./TimeSpan
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- ./CustodianObservation
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- ./ReconstructionActivity
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- ./DataLicensePolicy
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- ./Project
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- ./DigitalPlatform
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- ./AuxiliaryDigitalPlatform
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- ./EncompassingBody
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- ./DataServiceEndpoint
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- ./OAIPMHEndpoint
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- ./SearchAPI
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- ./METSAPI
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- ./FileAPI
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- ./IIPImageServer
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- ./EADDownload
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- ../slots/has_or_had_api_endpoint
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- ../slots/geographic_scope
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- ../slots/metadata_standard
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- ../slots/sparql_endpoint
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- ../slots/oai_pmh_endpoint
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- ../slots/identifier
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- ../slots/has_or_had_portal_data_source
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- ../slots/operated_by
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- ../slots/has_or_had_exposed_collection
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- ../slots/data_license_policy
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- ../slots/serves_finding_aid
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- ./ReconstructedEntity
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- ../slots/has_or_had_data_service_endpoint
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- ../slots/is_or_was_aggregated_by
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- ../slots/aggregates_from
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- ../slots/associated_encompassing_bodies
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- ../slots/created_by_project
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- ../slots/implements_auxiliary_platform
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- ../slots/implements_digital_platform
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- ../slots/launch_date
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- ../slots/participating_institution
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- ../slots/portal_description
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- ../slots/portal_id
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- ../slots/portal_language
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- ../slots/portal_name
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- ../slots/portal_status
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- ../slots/portal_type
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- ../slots/portal_url
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- ../slots/record_count
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- ../slots/specificity_annotation
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- ../slots/successor_portal
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- ../slots/template_specificity
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- ../slots/temporal_extent
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- ../slots/thematic_scope
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- ../slots/was_derived_from
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- ../slots/was_generated_by
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- ./CollectionManagementSystem
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- ./CustodianCollection
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- ./SpecificityAnnotation
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- ./TemplateSpecificityScores
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prefixes:
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linkml: https://w3id.org/linkml/
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hc: https://nde.nl/ontology/hc/
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schema: http://schema.org/
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dcterms: http://purl.org/dc/terms/
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edm: http://www.europeana.eu/schemas/edm/
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prov: http://www.w3.org/ns/prov#
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foaf: http://xmlns.com/foaf/0.1/
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ore: http://www.openarchives.org/ore/terms/
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skos: http://www.w3.org/2004/02/skos/core#
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odrl: http://www.w3.org/ns/odrl/2/
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org: http://www.w3.org/ns/org#
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default_prefix: hc
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slots:
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portal_id:
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identifier: true
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range: uriorcurie
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description: Unique identifier for this web portal
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portal_name:
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range: string
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description: Name of the web portal
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portal_type:
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range: WebPortalType
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description: Type/category of portal
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portal_url:
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range: uri
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description: Primary URL of the portal
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portal_description:
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range: string
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description: Description of the portal's purpose and scope
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thematic_scope:
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range: string
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multivalued: true
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description: Thematic/domain focus areas
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aggregates_or_aggregated_from:
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range: uriorcurie
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multivalued: true
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description: Other portals this portal aggregates from
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is_or_was_aggregated_by:
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range: uriorcurie
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multivalued: true
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description: Portals that aggregate from this portal
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portal_language:
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range: string
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multivalued: true
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description: Languages supported by the portal interface
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launch_date:
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range: date
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description: Date the portal was launched
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portal_status:
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range: string
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description: Current status (ACTIVE, LEGACY, DEPRECATED, MERGED)
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successor_portal:
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range: uriorcurie
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description: Successor portal if this one was deprecated/merged
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record_count:
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range: integer
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description: Approximate number of records in the portal
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participating_institution:
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range: integer
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description: Number of institutions contributing to the portal
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created_by_project:
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range: Project
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description: |
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Project that created or maintains this web portal.
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Links to Project class representing time-limited initiatives.
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has_or_had_associated_encompassing_body:
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range: uriorcurie
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multivalued: true
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description: |
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EncompassingBody organizations associated with this portal (beyond operator).
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For funding relationships, link to FundingOrganisation which then links to WebPortal.
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implements_digital_platform:
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range: DigitalPlatform
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multivalued: true
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description: |
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DigitalPlatform instances that this portal aggregates from or represents.
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Links portal aggregation to individual custodian digital platforms.
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implements_auxiliary_platform:
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range: AuxiliaryDigitalPlatform
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multivalued: true
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description: |
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AuxiliaryDigitalPlatform instances associated with this portal.
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Links to project-based or subordinate digital platforms.
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classes:
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WebPortal:
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is_a: ReconstructedEntity
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class_uri: edm:Aggregation
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description: "A web portal that aggregates or provides discovery access to heritage\n\
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metadata from multiple custodian institutions.\n\n**DEFINITION**:\n\nWebPortal\
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\ represents AGGREGATION/DISCOVERY portals - platforms that collect\nand expose\
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\ metadata from multiple heritage institutions. Distinguished from:\n- **DigitalPlatform**:\
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\ A single custodian's website/online presence\n- **CollectionManagementSystem**:\
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\ Backend software managing collection data\n\n**KEY CHARACTERISTICS**:\n\n\
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1. **Multi-Institution Aggregation**: Portals aggregate metadata from many institutions\n\
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2. **Discovery Focus**: Primary purpose is search/discovery across collections\n\
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3. **Standardized Metadata**: Use common standards (EDM, Dublin Core, EAD, LIDO)\n\
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4. **Technical Infrastructure**: Provide APIs, OAI-PMH endpoints, SPARQL\n5.\
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\ **Operated by Networks**: Typically run by EncompassingBody (Network, Consortium)\n\
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\n**RELATIONSHIP ARCHITECTURE**:\n\n```\nEncompassingBody (operator)\n │\n\
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\ └── operates → WebPortal\n │\n \
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\ ├── portal_data_sources ← CollectionManagementSystem[]\n \
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\ │ (CMS feeds data to portal)\n \
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\ │\n ├── exposes_collections → CustodianCollection[]\n\
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\ │ (collections discoverable\
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\ via portal)\n │\n └── aggregates_from\
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\ → WebPortal[]\n (portal-to-portal\
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\ aggregation chains)\n```\n\n**AGGREGATION CHAINS**:\n\nSome portals aggregate\
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\ from other portals, forming chains:\n```\nCMS → Regional Archive Portal →\
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\ National Archive Portal → Archives Portal Europe\nCMS → Museum → Aggregator\
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\ → Europeana\n```\n\nUse `aggregates_from` and `aggregated_by` to model these\
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\ chains.\n\n**PORTAL TYPES** (from WebPortalType class hierarchy):\n\n- **NATIONAL_AGGREGATOR**:\
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\ NDE Dataset Register, Deutsche Digitale Bibliothek\n- **REGIONAL_AGGREGATOR**:\
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\ LEO-BW, Bavarikon\n- **ARCHIVAL_PORTAL**: Archieven.nl, Archives Portal Europe\n\
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- **LIBRARY_UNION_CATALOG**: WorldCat, GBV\n- **MUSEUM_COLLECTION_PORTAL**:\
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\ Collectie Nederland, Europeana Collections\n- **CROSS_DOMAIN_AGGREGATOR**:\
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\ Europeana, DPLA\n- **COLONIAL_HERITAGE_PORTAL**: Colonial Collections (NL)\n\
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- **GENEALOGICAL_PORTAL**: OpenArchieven.nl, FamilySearch\n- **LINKED_DATA_HUB**:\
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\ NDE Termennetwerk, Wikidata\n- **OAI_PMH_HARVESTER**: BASE, OpenAIRE\n\n**EXAMPLES\
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\ OF DUTCH PORTALS**:\n\n1. **NDE Dataset Register** (datacatalogus.netwerkdigitaalerfgoed.nl)\n\
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\ - Type: NATIONAL_AGGREGATOR\n - Operator: NDE (NetworkOrganisation)\n\
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\ - Scope: All Dutch heritage datasets\n \n2. **Archieven.nl** (archieven.nl)\n\
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\ - Type: ARCHIVAL_PORTAL\n - Operator: KVAN network\n - Data sources:\
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\ MAIS-Flexis deployments at regional archives\n - Aggregated by: Archives\
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\ Portal Europe\n \n3. **OpenArchieven.nl** (openarchieven.nl)\n - Type:\
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\ GENEALOGICAL_PORTAL\n - Focus: Scanned civil registration, parish records\n\
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\ - Open access genealogical sources\n \n4. **Collectie Nederland** (collectienederland.nl)\n\
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\ - Type: MUSEUM_COLLECTION_PORTAL\n - Operator: Rijksdienst voor het Cultureel\
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\ Erfgoed\n - Aggregates museum objects from Dutch museums\n \n5. **Colonial\
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\ Collections** (datacatalogus.../group/colonial-collections)\n - Type: COLONIAL_HERITAGE_PORTAL\n\
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\ - Focus: Colonial history provenance research\n - Part of NDE Dataset\
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\ Register infrastructure\n\n**EXAMPLES OF GERMAN PORTALS**:\n\n1. **Archivportal-D**\
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\ (archivportal-d.de)\n - Type: ARCHIVAL_PORTAL\n - Operator: Landesarchiv\
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\ Baden-Württemberg (coordination)\n - National archive finding aid aggregator\n\
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\ \n2. **Deutsche Digitale Bibliothek** (deutsche-digitale-bibliothek.de)\n\
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\ - Type: CROSS_DOMAIN_AGGREGATOR\n - German national aggregator for Europeana\n\
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\ - Cross-domain (archives, libraries, museums)\n \n3. **LEO-BW** (leo-bw.de)\n\
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\ - Type: REGIONAL_AGGREGATOR\n - Baden-Württemberg regional portal\n \
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\ \n4. **Bavarikon** (bavarikon.de)\n - Type: REGIONAL_AGGREGATOR\n - Bavaria\
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\ regional cultural heritage portal\n\n**EXAMPLES OF EUROPEAN/INTERNATIONAL\
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\ PORTALS**:\n\n1. **Europeana** (europeana.eu)\n - Type: CROSS_DOMAIN_AGGREGATOR\n\
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\ - Operator: Europeana Foundation (NetworkOrganisation)\n - 50M+ objects\
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\ from European cultural heritage\n - Aggregates from national aggregators\
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\ (DDB, Gallica, etc.)\n \n2. **Archives Portal Europe** (archivesportaleurope.net)\n\
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\ - Type: ARCHIVAL_PORTAL\n - Operator: APEF Foundation\n - European archival\
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\ finding aids\n - Aggregates from national archive portals\n \n3. **Monasterium.net**\
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\ (monasterium.net)\n - Type: MONASTIC_HERITAGE_PORTAL\n - Operator: ICARUS\
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\ (Consortium)\n - Medieval charters and monastic documents\n \n4. **WorldCat**\
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\ (worldcat.org)\n - Type: LIBRARY_UNION_CATALOG\n - Operator: OCLC (Cooperative)\n\
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\ - 500M+ bibliographic records\n\n**ONTOLOGY ALIGNMENT**:\n\n- **EDM** (`edm:Aggregation`):\
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\ Primary mapping - portal aggregates CHOs\n- **ORE** (`ore:Aggregation`): Object\
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\ Reuse and Exchange aggregation\n- **Schema.org** (`schema:WebSite` + `schema:DataCatalog`):\
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\ Web presence + data catalog\n- **DCMI Type** (`dcmitype:Collection`): Collection\
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\ of metadata records\n\n**LIFECYCLE AND MIGRATION**:\n\nPortals evolve over\
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\ time:\n- New portals launch\n- Portals merge (use `successor_portal`)\n- Portals\
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\ become legacy but remain accessible\n- Portal scope expands (regional → national)\n\
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\nTrack status with `portal_status`: ACTIVE, LEGACY, DEPRECATED, MERGED\n"
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exact_mappings:
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- edm:Aggregation
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- ore:Aggregation
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close_mappings:
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- schema:WebSite
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- schema:DataCatalog
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- dcmitype:Collection
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slots:
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- is_or_was_aggregated_by
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- aggregates_from
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- has_or_had_api_endpoint
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- associated_encompassing_bodies
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- created_by_project
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- data_license_policy
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- has_or_had_data_service_endpoint
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- has_or_had_exposed_collection
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- geographic_scope
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- identifier
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- implements_auxiliary_platform
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- implements_digital_platform
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- launch_date
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- metadata_standard
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- oai_pmh_endpoint
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- operated_by
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- participating_institution
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- has_or_had_portal_data_source
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- portal_description
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- portal_id
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- portal_language
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- portal_name
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- portal_status
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- portal_type
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- portal_url
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- record_count
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- serves_finding_aid
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- sparql_endpoint
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- specificity_annotation
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- successor_portal
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- template_specificity
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- temporal_extent
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- thematic_scope
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- was_derived_from
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- was_generated_by
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slot_usage:
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portal_id:
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slot_uri: dcterms:identifier
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identifier: true
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required: true
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range: uriorcurie
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description: |
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Unique identifier for this web portal.
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Format: https://nde.nl/ontology/hc/portal/{scope}/{slug}
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pattern: ^https://nde\.nl/ontology/hc/portal/[a-z-]+/[a-z0-9-]+$
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examples:
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- value: https://nde.nl/ontology/hc/portal/nl/archieven-nl
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description: Dutch Archieven.nl portal
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- value: https://nde.nl/ontology/hc/portal/eu/europeana
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description: Europeana pan-European portal
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portal_name:
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slot_uri: skos:prefLabel
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required: true
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range: string
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description: |
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Official name of the web portal.
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examples:
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- value: Archieven.nl
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- value: Deutsche Digitale Bibliothek
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- value: Europeana
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portal_type:
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required: true
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range: WebPortalType
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description: |
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Category of portal based on function and scope.
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See WebPortalType class hierarchy for full list.
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examples:
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- value: ARCHIVAL_PORTAL
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- value: CROSS_DOMAIN_AGGREGATOR
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- value: REGIONAL_AGGREGATOR
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portal_url:
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slot_uri: schema:url
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required: true
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range: uri
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description: |
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Primary URL of the portal.
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examples:
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- value: https://archieven.nl
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- value: https://www.europeana.eu
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- value: https://www.deutsche-digitale-bibliothek.de
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portal_description:
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slot_uri: dcterms:description
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range: string
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description: |
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Description of the portal's purpose, scope, and target audience.
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examples:
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- value: Archieven.nl is the Dutch national portal for archival finding aids,
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providing unified search across 80+ Dutch archives.
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geographic_scope:
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slot_uri: schema:areaServed
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range: string
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multivalued: true
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inlined_as_list: true
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description: |
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Geographic coverage of the portal.
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Use ISO 3166 codes (NL, DE, EU) or descriptive terms (GLOBAL).
|
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examples:
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- value: NL
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description: Netherlands national coverage
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- value: DE-BW
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description: Baden-Württemberg regional coverage
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- value: EU
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description: European Union coverage
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|
thematic_scope:
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|
slot_uri: dcterms:subject
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|
range: string
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|
multivalued: true
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|
inlined_as_list: true
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|
description: |
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|
Thematic or domain focus areas of the portal.
|
|
examples:
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- value: Archival finding aids
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- value: Colonial heritage
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- value: Medieval charters
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- value: Genealogical records
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has_or_had_portal_data_source:
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|
slot_uri: edm:dataProvider
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|
range: uriorcurie
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|
multivalued: true
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|
inlined_as_list: true
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|
description: |
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Collection management systems that feed data into this portal.
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Links to CollectionManagementSystem instances.
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**Aggregation Flow**:
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CMS → portal_data_sources → WebPortal
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|
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One portal may receive data from multiple CMS deployments.
|
|
examples:
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|
- value: https://nde.nl/ontology/hc/cms/gelders-archief-mais
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|
description: MAIS deployment feeding Archieven.nl
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|
has_or_had_exposed_collection:
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|
slot_uri: edm:aggregatedCHO
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|
range: uriorcurie
|
|
multivalued: true
|
|
inlined_as_list: true
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|
description: |
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|
Collections whose metadata is discoverable through this portal.
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|
|
|
Links to CustodianCollection instances.
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|
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|
**Inverse of CustodianCollection.exposed_via_portal**
|
|
examples:
|
|
- value: https://nde.nl/ontology/hc/collection/na/voc-archives
|
|
description: VOC Archives exposed via Colonial Collections portal
|
|
operated_by:
|
|
slot_uri: schema:maintainer
|
|
required: true
|
|
range: uriorcurie
|
|
description: |
|
|
The EncompassingBody that operates and maintains this portal.
|
|
|
|
Typically a NetworkOrganisation, Consortium, or Cooperative.
|
|
examples:
|
|
- value: https://nde.nl/ontology/hc/encompassing-body/network/nde
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description: NDE operates the Dataset Register
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|
- value: https://nde.nl/ontology/hc/encompassing-body/network/europeana-foundation
|
|
description: Europeana Foundation operates Europeana
|
|
aggregates_or_aggregated_from:
|
|
slot_uri: ore:aggregates
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|
range: uriorcurie
|
|
multivalued: true
|
|
inlined_as_list: true
|
|
description: |
|
|
Other portals from which this portal aggregates data.
|
|
|
|
Used for portal-to-portal aggregation chains:
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|
- Europeana aggregates from DDB, Gallica, etc.
|
|
- Archives Portal Europe aggregates from national archive portals
|
|
|
|
**Inverse of aggregated_by**
|
|
examples:
|
|
- value: https://nde.nl/ontology/hc/portal/de/ddb
|
|
description: Europeana aggregates from DDB
|
|
is_or_was_aggregated_by:
|
|
slot_uri: dcterms:isPartOf
|
|
range: uriorcurie
|
|
multivalued: true
|
|
inlined_as_list: true
|
|
description: |
|
|
Portals that aggregate from this portal.
|
|
|
|
Shows where this portal's data flows upstream.
|
|
|
|
**Inverse of aggregates_from**
|
|
examples:
|
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- value: https://nde.nl/ontology/hc/portal/eu/europeana
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|
description: This portal's data is aggregated by Europeana
|
|
metadata_standard:
|
|
slot_uri: dcterms:conformsTo
|
|
range: string
|
|
multivalued: true
|
|
inlined_as_list: true
|
|
description: |
|
|
Metadata standards used by the portal for data exchange.
|
|
examples:
|
|
- value: EDM (Europeana Data Model)
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|
- value: EAD (Encoded Archival Description)
|
|
- value: Dublin Core
|
|
- value: LIDO
|
|
has_or_had_api_endpoint:
|
|
slot_uri: schema:documentation
|
|
range: uri
|
|
description: |
|
|
URL of the portal's REST/JSON API (if available).
|
|
examples:
|
|
- value: https://api.europeana.eu/record/v2/
|
|
sparql_endpoint:
|
|
slot_uri: schema:contentUrl
|
|
range: uri
|
|
description: |
|
|
URL of the portal's SPARQL endpoint (if available).
|
|
examples:
|
|
- value: https://sparql.europeana.eu/
|
|
oai_pmh_endpoint:
|
|
slot_uri: dcterms:source
|
|
range: uri
|
|
description: |
|
|
URL of the portal's OAI-PMH harvesting endpoint.
|
|
examples:
|
|
- value: https://oai.europeana.eu/oai
|
|
portal_language:
|
|
slot_uri: dcterms:language
|
|
range: string
|
|
multivalued: true
|
|
inlined_as_list: true
|
|
description: |
|
|
Languages supported by the portal interface.
|
|
Use ISO 639-1 codes.
|
|
examples:
|
|
- value: nl
|
|
- value: en
|
|
- value: de
|
|
launch_date:
|
|
slot_uri: schema:datePublished
|
|
range: date
|
|
description: |
|
|
Date the portal was originally launched.
|
|
examples:
|
|
- value: '2008-11-20'
|
|
description: Europeana launch date
|
|
portal_status:
|
|
range: string
|
|
description: |
|
|
Current operational status of the portal.
|
|
|
|
Values: ACTIVE, LEGACY, DEPRECATED, MERGED
|
|
|
|
- ACTIVE: Currently operational and maintained
|
|
- LEGACY: Still accessible but no longer actively developed
|
|
- DEPRECATED: Scheduled for shutdown
|
|
- MERGED: Merged into another portal (see successor_portal)
|
|
examples:
|
|
- value: ACTIVE
|
|
- value: LEGACY
|
|
successor_portal:
|
|
slot_uri: dcterms:isReplacedBy
|
|
range: uriorcurie
|
|
description: |
|
|
Portal that replaced this one (if deprecated or merged).
|
|
examples:
|
|
- value: https://nde.nl/ontology/hc/portal/nl/new-archieven-portal
|
|
description: Hypothetical successor portal
|
|
record_count:
|
|
slot_uri: schema:size
|
|
range: integer
|
|
description: |
|
|
Approximate number of records/objects in the portal.
|
|
Use most recent available count.
|
|
examples:
|
|
- value: 50000000
|
|
description: 'Europeana: 50M+ objects'
|
|
- value: 15000000
|
|
description: 'DDB: 15M+ objects'
|
|
participating_institution:
|
|
slot_uri: schema:numberOfItems
|
|
range: integer
|
|
description: |
|
|
Number of institutions contributing data to the portal.
|
|
examples:
|
|
- value: 80
|
|
description: 'Archieven.nl: 80+ archives'
|
|
- value: 4000
|
|
description: 'Europeana: 4000+ institutions'
|
|
identifier:
|
|
slot_uri: dcterms:identifier
|
|
range: uriorcurie
|
|
multivalued: true
|
|
inlined_as_list: true
|
|
description: |
|
|
External identifiers for this portal (Wikidata, VIAF, etc.).
|
|
examples:
|
|
- value: http://www.wikidata.org/entity/Q209441
|
|
description: Europeana Wikidata ID
|
|
temporal_extent:
|
|
slot_uri: dcterms:temporal
|
|
range: TimeSpan
|
|
description: |
|
|
Temporal period of portal operation.
|
|
Use begin_of_the_begin for launch, leave end open if active.
|
|
was_derived_from:
|
|
slot_uri: prov:wasDerivedFrom
|
|
range: CustodianObservation
|
|
multivalued: true
|
|
description: |
|
|
Observations documenting this portal (website scrapes, documentation).
|
|
was_generated_by:
|
|
slot_uri: prov:wasGeneratedBy
|
|
range: ReconstructionActivity
|
|
description: |
|
|
Activity that created this portal record.
|
|
data_license_policy:
|
|
slot_uri: odrl:hasPolicy
|
|
range: DataLicensePolicy
|
|
description: "The portal's data licensing and openness policy.\n\nLinks to\
|
|
\ DataLicensePolicy which defines:\n- Default license for portal data (CC0,\
|
|
\ CC-BY, proprietary, etc.)\n- Service-specific licenses (if different services\
|
|
\ have different licenses)\n- Openness stance (STRONG_OPEN_ADVOCATE, MIXED_POLICY,\
|
|
\ etc.)\n\n**IMPORTANT**: This is the portal's own policy, not the policies\
|
|
\ of \ncontributing institutions. For aggregation portals like Europeana,\n\
|
|
this represents the portal's metadata licensing policy, not the \nindividual\
|
|
\ licenses of aggregated objects.\n"
|
|
examples:
|
|
- value: https://nde.nl/ontology/hc/policy/europeana
|
|
description: Europeana's CC0 metadata policy
|
|
- value: https://nde.nl/ontology/hc/policy/archieven-nl
|
|
description: Archieven.nl data policy
|
|
created_by_project:
|
|
slot_uri: prov:wasGeneratedBy
|
|
range: Project
|
|
description: "The Project that created or maintains this web portal.\n\nLinks\
|
|
\ to Project class representing time-limited initiatives run by\nEncompassingBody\
|
|
\ organizations.\n\n**Relationship Architecture**:\n```\nEncompassingBody\
|
|
\ (e.g., NDE)\n │\n ├── projects ──→ Project (e.g., \"Portal Development\
|
|
\ 2024\")\n │ │\n │ └──\
|
|
\ creates ──→ WebPortal (this portal)\n │\n └── operates ──→ WebPortal\
|
|
\ (operational responsibility)\n```\n\n**DISTINCTION from operated_by**:\n\
|
|
- `operated_by`: The EncompassingBody with ongoing operational responsibility\n\
|
|
- `created_by_project`: The specific time-limited Project that built the\
|
|
\ portal\n\nA portal may be created by one project and then operated by\
|
|
\ the \nparent organization or a different entity.\n"
|
|
examples:
|
|
- value: https://nde.nl/ontology/hc/project/nde/nde-portal-development-2023
|
|
description: NDE Portal Development project that created this portal
|
|
has_or_had_associated_encompassing_body:
|
|
slot_uri: org:linkedTo
|
|
range: uriorcurie
|
|
multivalued: true
|
|
inlined_as_list: true
|
|
description: |
|
|
EncompassingBody organizations associated with this portal beyond the operator.
|
|
|
|
**USE CASES**:
|
|
|
|
1. **Consortium Members**: Multiple organizations collaboratively maintain portal
|
|
2. **Advisory Bodies**: Organizations with advisory/governance role
|
|
3. **Network Partners**: Organizations participating in portal network
|
|
|
|
**NOTE ON FUNDING RELATIONSHIPS**:
|
|
|
|
For funding relationships, do NOT link directly from WebPortal to funder.
|
|
Instead, follow the proper chain:
|
|
```
|
|
FundingOrganisation (e.g., European Commission)
|
|
│
|
|
└── funds ──→ Project (e.g., "Europeana DSI-4")
|
|
│
|
|
└── creates ──→ WebPortal
|
|
```
|
|
|
|
This maintains proper provenance and allows tracking funding over time.
|
|
|
|
W3C Org Ontology: org:linkedTo for organizational relationships.
|
|
examples:
|
|
- value: https://nde.nl/ontology/hc/encompassing-body/consortium/dans
|
|
description: DANS consortium as advisory partner
|
|
- value: https://nde.nl/ontology/hc/encompassing-body/network/europeana-aggregators
|
|
description: Europeana Aggregators Network
|
|
implements_digital_platform:
|
|
slot_uri: ore:aggregates
|
|
range: DigitalPlatform
|
|
multivalued: true
|
|
inlined_as_list: true
|
|
description: |
|
|
DigitalPlatform instances that this WebPortal aggregates from or represents.
|
|
|
|
Links portal aggregation to individual heritage custodian digital platforms.
|
|
|
|
**Aggregation Pattern**:
|
|
```
|
|
WebPortal (e.g., Europeana)
|
|
│
|
|
└── implements_digital_platform ──→ DigitalPlatform[] (custodian websites)
|
|
│
|
|
└── refers_to_custodian ──→ Custodian
|
|
```
|
|
|
|
**DISTINCTION from portal_data_sources**:
|
|
- `portal_data_sources`: Links to CollectionManagementSystem instances (technical data flow)
|
|
- `implements_digital_platform`: Links to DigitalPlatform instances (organizational representation)
|
|
|
|
ORE (Object Reuse and Exchange): ore:aggregates for aggregation relationship.
|
|
examples:
|
|
- value: https://nde.nl/ontology/hc/platform/rijksmuseum-website
|
|
description: Rijksmuseum digital platform aggregated by Europeana
|
|
implements_auxiliary_platform:
|
|
slot_uri: dcterms:hasPart
|
|
range: AuxiliaryDigitalPlatform
|
|
multivalued: true
|
|
inlined_as_list: true
|
|
description: |
|
|
AuxiliaryDigitalPlatform instances associated with this WebPortal.
|
|
|
|
Links to project-based or subordinate digital platforms that support
|
|
or extend the main portal functionality.
|
|
|
|
**USE CASES**:
|
|
|
|
1. **Thematic Sub-Portals**: Specialized views/interfaces (e.g., Colonial Collections on NDE)
|
|
2. **API Services**: Developer API endpoints for the portal
|
|
3. **Project Microsites**: Grant-funded project websites
|
|
4. **Educational Extensions**: Learning management components
|
|
|
|
Dublin Core: dcterms:hasPart for part-whole relationship.
|
|
examples:
|
|
- value: https://nde.nl/ontology/hc/aux-platform/nde-colonial-collections
|
|
description: Colonial Collections thematic sub-portal
|
|
- value: https://nde.nl/ontology/hc/aux-platform/europeana-api-v3
|
|
description: Europeana REST API v3
|
|
serves_finding_aid:
|
|
slot_uri: rico:isOrWasProviderOf
|
|
range: uriorcurie
|
|
multivalued: true
|
|
inlined_as_list: true
|
|
required: false
|
|
description: |
|
|
Finding aids hosted/served by this web portal.
|
|
|
|
**INVERSE RELATIONSHIP**:
|
|
- Forward: FindingAid.served_by → WebPortal (finding aid served by portal)
|
|
- Inverse: WebPortal.serves_finding_aids → FindingAid[] (portal serves finding aids)
|
|
|
|
**RiC-O ALIGNMENT**:
|
|
`rico:isOrWasProviderOf` - The agent (portal) provides the finding aid.
|
|
|
|
**USE CASES**:
|
|
1. "What finding aids are available on Archieven.nl?" → Query serves_finding_aids
|
|
2. "Which portals serve EAD finding aids?" → Query portals by finding aid format
|
|
3. Aggregation: Track which finding aids are exposed via which aggregator portals
|
|
|
|
**EXAMPLES**:
|
|
- Archieven.nl serves 1000+ EAD finding aids from Dutch archives
|
|
- Archives Portal Europe serves finding aids from 30+ European countries
|
|
- NDE Dataset Register catalogs finding aids as datasets
|
|
examples:
|
|
- value: https://nde.nl/ontology/hc/finding-aid/gelders-archief/ead-main
|
|
description: Gelders Archief EAD inventory
|
|
- value: https://nde.nl/ontology/hc/finding-aid/na/collection-guide
|
|
description: National Archives collection guide
|
|
has_or_had_data_service_endpoint:
|
|
slot_uri: dcat:servesDataset
|
|
range: DataServiceEndpoint
|
|
multivalued: true
|
|
inlined_as_list: true
|
|
required: false
|
|
description: |
|
|
Data service endpoints exposed by this web portal.
|
|
|
|
**DCAT ALIGNMENT**:
|
|
`dcat:servesDataset` - Links a DataService to the datasets it serves.
|
|
|
|
**ENDPOINT TYPES**:
|
|
- OAIPMHEndpoint: OAI-PMH metadata harvesting (primary for aggregation portals)
|
|
- SearchAPI: REST/JSON search API endpoints
|
|
- METSAPI: METS document retrieval
|
|
- IIPImageServer: IIIF image servers
|
|
|
|
**USE CASES**:
|
|
1. "What APIs does Europeana expose?" → Follow data_service_endpoints
|
|
2. Technical integration: Discover all programmatic access points for portal
|
|
3. Data harvesting: Find OAI-PMH endpoints for metadata aggregation
|
|
|
|
**RELATIONSHIP TO SIMPLE SLOTS**:
|
|
- `api_endpoint`, `sparql_endpoint`, `oai_pmh_endpoint` provide quick URI access
|
|
- `data_service_endpoints` provides FULL documentation with protocol details,
|
|
authentication requirements, rate limits, response formats
|
|
examples:
|
|
- value:
|
|
- endpoint_id: https://nde.nl/ontology/hc/endpoint/europeana-oai
|
|
endpoint_name: Europeana OAI-PMH
|
|
endpoint_url: https://oai.europeana.eu/oai
|
|
protocol: OAI_PMH
|
|
protocol_version: '2.0'
|
|
status: ACTIVE
|
|
description: Europeana portal data service endpoints
|
|
specificity_annotation:
|
|
range: SpecificityAnnotation
|
|
inlined: true
|
|
template_specificity:
|
|
range: TemplateSpecificityScores
|
|
inlined: true
|
|
comments:
|
|
- WebPortal is DISTINCT from DigitalPlatform (single custodian website)
|
|
- WebPortal AGGREGATES metadata from multiple institutions
|
|
- 'Portals form aggregation chains: regional → national → European'
|
|
- Typically operated by EncompassingBody (Network, Consortium)
|
|
- Track lifecycle with portal_status and successor_portal
|
|
- 'NEW: data_license_policy links to portal''s licensing stance (CC0, CC-BY, etc.)'
|
|
- 'NEW: created_by_project links to Project that built the portal'
|
|
- 'NEW: associated_encompassing_bodies for organizational relationships beyond
|
|
operator'
|
|
- 'NEW: implements_digital_platform links to aggregated DigitalPlatform instances'
|
|
- 'NEW: implements_auxiliary_platform links to subordinate AuxiliaryDigitalPlatform
|
|
instances'
|
|
- 'FUNDING: For funding relationships, link FundingOrganisation → Project → WebPortal
|
|
(not direct)'
|
|
see_also:
|
|
- https://pro.europeana.eu/page/edm-documentation
|
|
- https://www.openarchives.org/ore/
|
|
- https://www.openarchives.org/pmh/
|
|
examples:
|
|
- value:
|
|
portal_id: https://nde.nl/ontology/hc/portal/nl/archieven-nl
|
|
portal_name: Archieven.nl
|
|
portal_type: ARCHIVAL_PORTAL
|
|
portal_url: https://archieven.nl
|
|
portal_description: |
|
|
Archieven.nl is the Dutch national portal for archival finding aids,
|
|
providing unified search across 80+ Dutch archives. Users can search
|
|
EAD-encoded finding aids and access scanned documents.
|
|
geographic_scope:
|
|
- NL
|
|
thematic_scope:
|
|
- Archival finding aids
|
|
- Government records
|
|
- Genealogical sources
|
|
operated_by: https://nde.nl/ontology/hc/encompassing-body/network/kvan
|
|
is_or_was_aggregated_by:
|
|
- https://nde.nl/ontology/hc/portal/eu/archives-portal-europe
|
|
metadata_standard:
|
|
- EAD (Encoded Archival Description)
|
|
- EAC-CPF
|
|
oai_pmh_endpoint: https://oai.archieven.nl/
|
|
portal_language:
|
|
- nl
|
|
- en
|
|
portal_status: ACTIVE
|
|
participating_institutions: 80
|
|
description: Archieven.nl - Dutch national archival portal
|
|
- value:
|
|
portal_id: https://nde.nl/ontology/hc/portal/eu/europeana
|
|
portal_name: Europeana
|
|
portal_type: CROSS_DOMAIN_AGGREGATOR
|
|
portal_url: https://www.europeana.eu
|
|
portal_description: |
|
|
Europeana provides access to over 50 million digitised items from
|
|
European museums, galleries, libraries, and archives. It is the
|
|
European Union's digital platform for cultural heritage.
|
|
geographic_scope:
|
|
- EU
|
|
- EEA
|
|
thematic_scope:
|
|
- Art and cultural heritage
|
|
- Libraries
|
|
- Archives
|
|
- Museums
|
|
operated_by: https://nde.nl/ontology/hc/encompassing-body/network/europeana-foundation
|
|
aggregates_or_aggregated_from:
|
|
- https://nde.nl/ontology/hc/portal/de/ddb
|
|
- https://nde.nl/ontology/hc/portal/fr/gallica
|
|
- https://nde.nl/ontology/hc/portal/nl/collectie-nederland
|
|
metadata_standard:
|
|
- EDM (Europeana Data Model)
|
|
- Dublin Core
|
|
api_endpoint: https://api.europeana.eu/record/v2/
|
|
sparql_endpoint: https://sparql.europeana.eu/
|
|
oai_pmh_endpoint: https://oai.europeana.eu/oai
|
|
portal_language:
|
|
- en
|
|
- de
|
|
- fr
|
|
- nl
|
|
launch_date: '2008-11-20'
|
|
portal_status: ACTIVE
|
|
record_count: 50000000
|
|
participating_institutions: 4000
|
|
identifier:
|
|
- http://www.wikidata.org/entity/Q209441
|
|
data_license_policy:
|
|
- policy_id: https://nde.nl/ontology/hc/policy/europeana-data-exchange
|
|
policy_name: Europeana Data Exchange Agreement
|
|
data_licenses:
|
|
- license_id: https://creativecommons.org/publicdomain/zero/1.0/
|
|
license_name: CC0 1.0 Universal (Public Domain)
|
|
license_scope: Metadata provided to Europeana
|
|
temporal_extent:
|
|
begin_of_the_begin: '2011-09-01'
|
|
end_of_the_end: null
|
|
created_by_project:
|
|
project_id: https://nde.nl/ontology/hc/project/europeana-dsi
|
|
project_name: Europeana DSI (Digital Service Infrastructure)
|
|
project_description: "EU-funded project under CEF Telecom to develop and\
|
|
\ maintain the \nEuropeana digital platform as core European cultural\
|
|
\ heritage infrastructure.\n"
|
|
funding_sources:
|
|
- https://nde.nl/ontology/hc/funding-org/eu/cef-telecom
|
|
project_period:
|
|
begin_of_the_begin: '2015-01-01'
|
|
end_of_the_end: '2025-12-31'
|
|
has_or_had_associated_encompassing_body:
|
|
- https://nde.nl/ontology/hc/encompassing-body/government/european-commission
|
|
- https://nde.nl/ontology/hc/encompassing-body/network/europeana-foundation
|
|
- https://nde.nl/ontology/hc/encompassing-body/consortium/europeana-network-association
|
|
implements_digital_platform:
|
|
- platform_id: https://nde.nl/ontology/hc/platform/europeana-collections
|
|
platform_name: Europeana Collections
|
|
platform_url: https://www.europeana.eu/collections
|
|
temporal_extent:
|
|
begin_of_the_begin: '2008-11-20'
|
|
- platform_id: https://nde.nl/ontology/hc/platform/europeana-pro
|
|
platform_name: Europeana Pro
|
|
platform_url: https://pro.europeana.eu
|
|
temporal_extent:
|
|
begin_of_the_begin: '2014-01-01'
|
|
implements_auxiliary_platform:
|
|
- auxiliary_id: https://nde.nl/ontology/hc/auxiliary/europeana-iiif
|
|
auxiliary_name: Europeana IIIF APIs
|
|
auxiliary_url: https://iiif.europeana.eu
|
|
auxiliary_type: IIIF_SERVER
|
|
temporal_extent:
|
|
begin_of_the_begin: '2018-01-01'
|
|
- auxiliary_id: https://nde.nl/ontology/hc/auxiliary/europeana-entity-api
|
|
auxiliary_name: Europeana Entity API
|
|
auxiliary_url: https://api.europeana.eu/entity
|
|
auxiliary_type: REST_API
|
|
temporal_extent:
|
|
begin_of_the_begin: '2017-01-01'
|
|
description: Europeana - pan-European cultural heritage portal (comprehensive
|
|
example with all relationship slots)
|
|
- value:
|
|
portal_id: https://nde.nl/ontology/hc/portal/de/archivportal-d
|
|
portal_name: Archivportal-D
|
|
portal_type: ARCHIVAL_PORTAL
|
|
portal_url: https://www.archivportal-d.de
|
|
portal_description: |
|
|
Archivportal-D is the German national portal for archival finding aids,
|
|
aggregating EAD descriptions from German archives and providing unified
|
|
search and access.
|
|
geographic_scope:
|
|
- DE
|
|
thematic_scope:
|
|
- Archival finding aids
|
|
operated_by: https://nde.nl/ontology/hc/encompassing-body/network/archivportal-d-koordination
|
|
is_or_was_aggregated_by:
|
|
- https://nde.nl/ontology/hc/portal/eu/archives-portal-europe
|
|
- https://nde.nl/ontology/hc/portal/de/ddb
|
|
metadata_standard:
|
|
- EAD
|
|
- EAC-CPF
|
|
portal_language:
|
|
- de
|
|
- en
|
|
portal_status: ACTIVE
|
|
description: Archivportal-D - German national archival portal
|