990 lines
38 KiB
YAML
990 lines
38 KiB
YAML
# WebPortal Class
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# Represents heritage metadata aggregation/discovery portals
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# Based on Europeana Data Model (EDM) Aggregation concept
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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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# NOTE: WebPortalTypeEnum was migrated to WebPortalType class hierarchy (2025-12-06)
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# See: modules/classes/WebPortalType.yaml, modules/classes/WebPortalTypes.yaml
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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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- ../slots/api_endpoint
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- ../slots/geographic_scope
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- ../slots/metadata_standards
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- ../slots/sparql_endpoint
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- ../slots/oai_pmh_endpoint
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- ../slots/identifiers
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- ../slots/portal_data_sources
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- ../slots/operated_by
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- ../slots/exposes_collections
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- ../slots/data_license_policy
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- ../slots/serves_finding_aids
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- ./ReconstructedEntity
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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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# NOTE: geographic_scope imported from global slot ../slots/geographic_scope.yaml
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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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# NOTE: portal_data_sources imported from global slot ../slots/portal_data_sources.yaml
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# NOTE: exposes_collections imported from global slot ../slots/exposes_collections.yaml
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# NOTE: operated_by imported from global slot ../slots/operated_by.yaml
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aggregates_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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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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# NOTE: metadata_standards imported from global slot ../slots/metadata_standards.yaml
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# NOTE: api_endpoint imported from global slot ../slots/api_endpoint.yaml
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# NOTE: sparql_endpoint imported from global slot ../slots/sparql_endpoint.yaml
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# NOTE: oai_pmh_endpoint imported from global slot ../slots/oai_pmh_endpoint.yaml
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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_institutions:
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range: integer
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description: Number of institutions contributing to the portal
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# NOTE: identifiers imported from global slot ../slots/identifiers.yaml
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# NOTE: data_license_policy imported from global slot ../slots/data_license_policy.yaml
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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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associated_encompassing_bodies:
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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: |
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A web portal that aggregates or provides discovery access to heritage
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metadata from multiple custodian institutions.
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**DEFINITION**:
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WebPortal represents AGGREGATION/DISCOVERY portals - platforms that collect
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and expose metadata from multiple heritage institutions. Distinguished from:
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- **DigitalPlatform**: A single custodian's website/online presence
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- **CollectionManagementSystem**: Backend software managing collection data
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**KEY CHARACTERISTICS**:
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1. **Multi-Institution Aggregation**: Portals aggregate metadata from many institutions
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2. **Discovery Focus**: Primary purpose is search/discovery across collections
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3. **Standardized Metadata**: Use common standards (EDM, Dublin Core, EAD, LIDO)
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4. **Technical Infrastructure**: Provide APIs, OAI-PMH endpoints, SPARQL
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5. **Operated by Networks**: Typically run by EncompassingBody (Network, Consortium)
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**RELATIONSHIP ARCHITECTURE**:
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```
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EncompassingBody (operator)
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│
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└── operates → WebPortal
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│
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├── portal_data_sources ← CollectionManagementSystem[]
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│ (CMS feeds data to portal)
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│
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├── exposes_collections → CustodianCollection[]
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│ (collections discoverable via portal)
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│
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└── aggregates_from → WebPortal[]
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(portal-to-portal aggregation chains)
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```
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**AGGREGATION CHAINS**:
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Some portals aggregate from other portals, forming chains:
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```
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CMS → Regional Archive Portal → National Archive Portal → Archives Portal Europe
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CMS → Museum → Aggregator → Europeana
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```
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Use `aggregates_from` and `aggregated_by` to model these chains.
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**PORTAL TYPES** (from WebPortalType class hierarchy):
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- **NATIONAL_AGGREGATOR**: NDE Dataset Register, Deutsche Digitale Bibliothek
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- **REGIONAL_AGGREGATOR**: LEO-BW, Bavarikon
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- **ARCHIVAL_PORTAL**: Archieven.nl, Archives Portal Europe
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- **LIBRARY_UNION_CATALOG**: WorldCat, GBV
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- **MUSEUM_COLLECTION_PORTAL**: Collectie Nederland, Europeana Collections
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- **CROSS_DOMAIN_AGGREGATOR**: Europeana, DPLA
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- **COLONIAL_HERITAGE_PORTAL**: Colonial Collections (NL)
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- **GENEALOGICAL_PORTAL**: OpenArchieven.nl, FamilySearch
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- **LINKED_DATA_HUB**: NDE Termennetwerk, Wikidata
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- **OAI_PMH_HARVESTER**: BASE, OpenAIRE
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**EXAMPLES OF DUTCH PORTALS**:
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1. **NDE Dataset Register** (datacatalogus.netwerkdigitaalerfgoed.nl)
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- Type: NATIONAL_AGGREGATOR
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- Operator: NDE (NetworkOrganisation)
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- Scope: All Dutch heritage datasets
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2. **Archieven.nl** (archieven.nl)
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- Type: ARCHIVAL_PORTAL
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- Operator: KVAN network
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- Data sources: MAIS-Flexis deployments at regional archives
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- Aggregated by: Archives Portal Europe
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3. **OpenArchieven.nl** (openarchieven.nl)
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- Type: GENEALOGICAL_PORTAL
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- Focus: Scanned civil registration, parish records
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- Open access genealogical sources
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4. **Collectie Nederland** (collectienederland.nl)
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- Type: MUSEUM_COLLECTION_PORTAL
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- Operator: Rijksdienst voor het Cultureel Erfgoed
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- Aggregates museum objects from Dutch museums
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5. **Colonial Collections** (datacatalogus.../group/colonial-collections)
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- Type: COLONIAL_HERITAGE_PORTAL
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- Focus: Colonial history provenance research
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- Part of NDE Dataset Register infrastructure
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**EXAMPLES OF GERMAN PORTALS**:
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1. **Archivportal-D** (archivportal-d.de)
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- Type: ARCHIVAL_PORTAL
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- Operator: Landesarchiv Baden-Württemberg (coordination)
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- National archive finding aid aggregator
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2. **Deutsche Digitale Bibliothek** (deutsche-digitale-bibliothek.de)
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- Type: CROSS_DOMAIN_AGGREGATOR
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- German national aggregator for Europeana
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- Cross-domain (archives, libraries, museums)
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3. **LEO-BW** (leo-bw.de)
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- Type: REGIONAL_AGGREGATOR
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- Baden-Württemberg regional portal
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4. **Bavarikon** (bavarikon.de)
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- Type: REGIONAL_AGGREGATOR
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- Bavaria regional cultural heritage portal
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**EXAMPLES OF EUROPEAN/INTERNATIONAL PORTALS**:
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1. **Europeana** (europeana.eu)
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- Type: CROSS_DOMAIN_AGGREGATOR
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- Operator: Europeana Foundation (NetworkOrganisation)
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- 50M+ objects from European cultural heritage
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- Aggregates from national aggregators (DDB, Gallica, etc.)
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2. **Archives Portal Europe** (archivesportaleurope.net)
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- Type: ARCHIVAL_PORTAL
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- Operator: APEF Foundation
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- European archival finding aids
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- Aggregates from national archive portals
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3. **Monasterium.net** (monasterium.net)
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- Type: MONASTIC_HERITAGE_PORTAL
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- Operator: ICARUS (Consortium)
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- Medieval charters and monastic documents
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4. **WorldCat** (worldcat.org)
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- Type: LIBRARY_UNION_CATALOG
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- Operator: OCLC (Cooperative)
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- 500M+ bibliographic records
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**ONTOLOGY ALIGNMENT**:
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- **EDM** (`edm:Aggregation`): Primary mapping - portal aggregates CHOs
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- **ORE** (`ore:Aggregation`): Object Reuse and Exchange aggregation
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- **Schema.org** (`schema:WebSite` + `schema:DataCatalog`): Web presence + data catalog
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- **DCMI Type** (`dcmitype:Collection`): Collection of metadata records
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**LIFECYCLE AND MIGRATION**:
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Portals evolve over time:
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- New portals launch
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- Portals merge (use `successor_portal`)
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- Portals become legacy but remain accessible
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- Portal scope expands (regional → national)
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Track status with `portal_status`: ACTIVE, LEGACY, DEPRECATED, MERGED
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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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- portal_id
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- portal_name
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- portal_type
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- portal_url
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- portal_description
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- geographic_scope
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- thematic_scope
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- portal_data_sources
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- exposes_collections
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- operated_by
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- aggregates_from
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- aggregated_by
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- metadata_standards
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- api_endpoint
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- sparql_endpoint
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- oai_pmh_endpoint
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- portal_language
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- launch_date
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- portal_status
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- successor_portal
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- record_count
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- participating_institutions
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- identifiers
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- temporal_extent
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- was_derived_from
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- was_generated_by
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- data_license_policy
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- created_by_project
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- associated_encompassing_bodies
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- implements_digital_platform
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- implements_auxiliary_platform
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- serves_finding_aids
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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: >-
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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.
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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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portal_data_sources:
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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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One portal may receive data from multiple CMS deployments.
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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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exposes_collections:
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slot_uri: edm:aggregatedCHO
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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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Collections whose metadata is discoverable through this portal.
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Links to CustodianCollection instances.
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**Inverse of CustodianCollection.exposed_via_portal**
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examples:
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- value: "https://nde.nl/ontology/hc/collection/na/voc-archives"
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description: "VOC Archives exposed via Colonial Collections portal"
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operated_by:
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slot_uri: schema:maintainer
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required: true
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range: uriorcurie
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description: |
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The EncompassingBody that operates and maintains this portal.
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Typically a NetworkOrganisation, Consortium, or Cooperative.
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examples:
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- 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"
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description: "Europeana Foundation operates Europeana"
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aggregates_from:
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slot_uri: ore:aggregates
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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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Other portals from which this portal aggregates data.
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Used for portal-to-portal aggregation chains:
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- Europeana aggregates from DDB, Gallica, etc.
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- Archives Portal Europe aggregates from national archive portals
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**Inverse of aggregated_by**
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examples:
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- value: "https://nde.nl/ontology/hc/portal/de/ddb"
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description: "Europeana aggregates from DDB"
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aggregated_by:
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slot_uri: dcterms:isPartOf
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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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Portals that aggregate from this portal.
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Shows where this portal's data flows upstream.
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**Inverse of aggregates_from**
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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"
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metadata_standards:
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slot_uri: dcterms:conformsTo
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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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Metadata standards used by the portal for data exchange.
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examples:
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- value: "EDM (Europeana Data Model)"
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- value: "EAD (Encoded Archival Description)"
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- value: "Dublin Core"
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|
- value: "LIDO"
|
|
|
|
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_institutions:
|
|
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"
|
|
|
|
identifiers:
|
|
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.
|
|
|
|
Links to DataLicensePolicy which defines:
|
|
- Default license for portal data (CC0, CC-BY, proprietary, etc.)
|
|
- Service-specific licenses (if different services have different licenses)
|
|
- Openness stance (STRONG_OPEN_ADVOCATE, MIXED_POLICY, etc.)
|
|
|
|
**IMPORTANT**: This is the portal's own policy, not the policies of
|
|
contributing institutions. For aggregation portals like Europeana,
|
|
this represents the portal's metadata licensing policy, not the
|
|
individual licenses of aggregated objects.
|
|
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.
|
|
|
|
Links to Project class representing time-limited initiatives run by
|
|
EncompassingBody organizations.
|
|
|
|
**Relationship Architecture**:
|
|
```
|
|
EncompassingBody (e.g., NDE)
|
|
│
|
|
├── projects ──→ Project (e.g., "Portal Development 2024")
|
|
│ │
|
|
│ └── creates ──→ WebPortal (this portal)
|
|
│
|
|
└── operates ──→ WebPortal (operational responsibility)
|
|
```
|
|
|
|
**DISTINCTION from operated_by**:
|
|
- `operated_by`: The EncompassingBody with ongoing operational responsibility
|
|
- `created_by_project`: The specific time-limited Project that built the portal
|
|
|
|
A portal may be created by one project and then operated by the
|
|
parent organization or a different entity.
|
|
examples:
|
|
- value: "https://nde.nl/ontology/hc/project/nde/nde-portal-development-2023"
|
|
description: "NDE Portal Development project that created this portal"
|
|
|
|
associated_encompassing_bodies:
|
|
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_aids:
|
|
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"
|
|
|
|
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"
|
|
aggregated_by:
|
|
- "https://nde.nl/ontology/hc/portal/eu/archives-portal-europe"
|
|
metadata_standards:
|
|
- "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_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_standards:
|
|
- "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
|
|
identifiers:
|
|
- "http://www.wikidata.org/entity/Q209441"
|
|
# NEW RELATIONSHIP SLOTS (added 2025-12-01)
|
|
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 # Ongoing
|
|
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
|
|
Europeana digital platform as core European cultural heritage infrastructure.
|
|
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"
|
|
associated_encompassing_bodies:
|
|
# Funding governance (indirect via FundingOrganisation → Project → WebPortal)
|
|
- "https://nde.nl/ontology/hc/encompassing-body/government/european-commission"
|
|
# Operating foundation
|
|
- "https://nde.nl/ontology/hc/encompassing-body/network/europeana-foundation"
|
|
# Member state cultural ministries
|
|
- "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"
|
|
aggregated_by:
|
|
- "https://nde.nl/ontology/hc/portal/eu/archives-portal-europe"
|
|
- "https://nde.nl/ontology/hc/portal/de/ddb"
|
|
metadata_standards:
|
|
- "EAD"
|
|
- "EAC-CPF"
|
|
portal_language:
|
|
- "de"
|
|
- "en"
|
|
portal_status: "ACTIVE"
|
|
description: "Archivportal-D - German national archival portal"
|