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glam/schemas/20251121/linkml/modules/classes/WebObservation.yaml
kempersc c1946e93f9 Refactor VideoPost and WebObservation schemas; remove deprecated slots and migrate to new structures 
- Updated VideoPost.yaml to include new slots and remove deprecated ones, enhancing video-specific properties.
- Removed extraction_confidence from WebObservation.yaml, streamlining the schema.
- Deleted obsolete slot files: characteristics.yaml, class_definition.yaml, confidence.yaml, confidence_method.yaml, confidence_score.yaml, confidence_value.yaml, count.yaml, and hosts_branch.yaml.
- Introduced ghost_slots.txt to track unused slots.
- Archived previous versions of characteristics, class_definition, confidence, confidence_method, confidence_score, confidence_value, count, and hosts_branch slots for historical reference.
- Added new slots: has_or_had_citation, has_or_had_city_code, and is_or_was_location_of with appropriate descriptions and mappings.
2026-01-28 15:04:11 +01:00

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id: https://nde.nl/ontology/hc/class/WebObservation
name: WebObservation
title: WebObservation Class
prefixes:
linkml: https://w3id.org/linkml/
hc: https://nde.nl/ontology/hc/
schema: http://schema.org/
dcterms: http://purl.org/dc/terms/
prov: http://www.w3.org/ns/prov#
pav: http://purl.org/pav/
foaf: http://xmlns.com/foaf/0.1/
xsd: http://www.w3.org/2001/XMLSchema#
crm: http://www.cidoc-crm.org/cidoc-crm/
skos: http://www.w3.org/2004/02/skos/core#
rdfs: http://www.w3.org/2000/01/rdf-schema#
org: http://www.w3.org/ns/org#
imports:
- linkml:types
- ./WebClaim
- ../slots/is_or_was_archived_at
- ../slots/extraction_note
- ../slots/source_url
- ../slots/retrieved_on
- ../slots/content_hash
- ../slots/warrants_or_warranted
- ../slots/content_changed
- ../slots/content_type
- ../slots/has_or_had_method
- ./CacheValidation
- ./ETag
- ../slots/has_or_had_status
- ../slots/last_modified
- ../slots/observation_id
- ../slots/observed_entity
- ../slots/page_title
- ../slots/previous_observation
- ../slots/retrieval_method
- ../slots/retrieved_by
- ../slots/specificity_annotation
- ../slots/has_or_had_score
- ./SpecificityAnnotation
- ./TemplateSpecificityScore
- ./TemplateSpecificityType
- ./TemplateSpecificityTypes
default_prefix: hc
classes:
WebObservation:
class_uri: prov:Activity
description: "A provenance record documenting the retrieval and observation of web content.\nTracks when, where, and how web-based information was obtained.\n\n**PURPOSE**:\n\nWebObservation provides transparent provenance for web-extracted data in the\nheritage custodian ontology. When information about funding calls, institutions,\nor other entities is extracted from web sources, a WebObservation record\ndocuments:\n\n- **What**: The source URL and content\n- **When**: Timestamp of retrieval\n- **Who/What**: Agent performing retrieval\n- **How**: Method of extraction\n- **Quality**: Confidence scores and notes\n\n**PROVENANCE CHAIN**:\n\n```\nWebObservation (Activity)\n \u2502\n \u251C\u2500\u2500 prov:used \u2500\u2500\u2192 SourceDocument (web page as Entity)\n \u2502 \u2502\n \u2502 \u2514\u2500\u2500 source_uri: https://example.org/call\n \u2502\n \u251C\u2500\u2500 prov:generated \u2500\u2500\u2192 CallForApplication\
\ (extracted Entity)\n \u2502\n \u251C\u2500\u2500 pav:retrievedFrom \u2500\u2500\u2192 URI of source\n \u251C\u2500\u2500 pav:retrievedOn \u2500\u2500\u2192 datetime\n \u2514\u2500\u2500 pav:retrievedBy \u2500\u2500\u2192 agent identifier\n```\n\n**PROV-O ALIGNMENT**:\n\nWebObservation is modelled as a `prov:Activity`:\n- Activities are \"something that occurs over a period of time and acts upon\n or with entities\"\n- The retrieval of a web page is an activity that uses a SourceDocument\n (the live web page) and generates extracted data\n\nKey PROV-O properties:\n- `prov:used` - The web page accessed\n- `prov:generated` - The extracted data entity\n- `prov:wasAssociatedWith` - The retrieval agent\n- `prov:atTime` - When the activity occurred\n\n**PAV ALIGNMENT**:\n\nPAV (Provenance, Authoring and Versioning) provides more specific properties:\n- `pav:retrievedFrom` - Source URL\n- `pav:retrievedOn` - Retrieval timestamp\n- `pav:retrievedBy` - Retrieval agent\n\
- `pav:sourceAccessedAt` - When source was consulted\n\n**CHANGE DETECTION**:\n\nWebObservation supports tracking changes over time:\n- Link to `previous_observation` for same URL\n- `content_changed` flag for quick change detection\n- `content_hash` for integrity verification\n- Compare `last_modified` and `etag` across observations\n\n**ARCHIVAL INTEGRATION**:\n\nFor long-term preservation, link to archived copies:\n- `is_or_was_archived_at` can point to Wayback Machine, Archive.today, etc.\n- Ensures cited web content remains accessible\n\n**EXAMPLES**:\n\n1. **EU Funding Portal Observation**\n - source_url: https://ec.europa.eu/.../topic-details/horizon-cl2-2025-heritage-01\n - retrieved_on: 2025-11-29T10:30:00Z\n - retrieved_by: \"glam-harvester/1.0\"\n - extraction_confidence: 0.95\n \n2. **Heritage Organisation Website**\n - source_url: https://www.heritagefund.org.uk/funding/medium-grants\n - retrieved_on: 2025-11-28T14:00:00Z\n - content_type: text/html\n \
\ - page_title: \"Medium grants - Heritage Fund\"\n \n3. **Wikidata SPARQL Query**\n - source_url: https://query.wikidata.org/sparql?query=...\n - retrieval_method: SPARQL API\n - content_type: application/sparql-results+json\n - observed_entities: [Q131381572, Q1375245, ...]\n"
exact_mappings:
- prov:Activity
close_mappings:
- pav:Retrieval
- schema:Action
related_mappings:
- prov:Entity
- pav:sourceAccessedAt
- dcterms:source
slots:
- is_or_was_archived_at
- warrants_or_warranted
- content_changed
- content_hash
- content_type
- has_or_had_method
- extraction_note
- has_or_had_status
- last_modified
- observation_id
- observed_entity
- page_title
- previous_observation
- retrieval_method
- retrieved_by
- retrieved_on
- source_url
- specificity_annotation
- has_or_had_score
slot_usage:
has_or_had_method:
range: CacheValidation
description: Cache validation method (e.g. ETag). MIGRATED from etag per slot_fixes.yaml (Rule 53).
has_or_had_status: # was: http_status_code - migrated per Rule 53/56 (2026-01-28)
range: HTTPStatusCode
description: |
HTTP response status code (e.g. 200, 404).
MIGRATED from http_status_code.
Uses HTTPStatusCode class which inherits from Status.
examples:
- value:
has_or_had_value: "200"
has_or_had_label: "OK"
description: Standard success response
comments:
- WebObservation is a prov:Activity documenting web content retrieval
- Integrates PROV-O for provenance and PAV for retrieval-specific properties
- Supports change detection via content_hash, previous_observation, content_changed
- Links to archived copies via is_or_was_archived_at for long-term citation
- observed_entities links observation to extracted data (prov:generated)
see_also:
- https://www.w3.org/TR/prov-o/
- http://purl.org/pav/
- https://www.w3.org/TR/prov-dm/
- https://web.archive.org/
examples:
- value:
observation_id: https://nde.nl/ontology/hc/observation/web/2025-11-29/eu-horizon-cl2-heritage
source_url: https://ec.europa.eu/info/funding-tenders/opportunities/portal/screen/opportunities/topic-details/horizon-cl2-2025-heritage-01
retrieved_on: '2025-11-29T10:30:00Z'
retrieved_by: claude-assistant
retrieval_method: exa-search
has_or_had_status:
has_or_had_value: "200"
content_type: text/html
page_title: Horizon Europe - Cultural heritage, cultural and creative industries
extraction_confidence: 0.92
extraction_notes: Extracted via Exa AI search. Call details structured and well-formatted. Budget and deadline clearly stated. Eligibility criteria parsed from HTML sections.
observed_entity:
- https://nde.nl/ontology/hc/call/ec/cl2-2025-heritage-01
is_or_was_archived_at: https://web.archive.org/web/20251129103000/https://ec.europa.eu/info/funding-tenders/opportunities/portal/screen/opportunities/topic-details/horizon-cl2-2025-heritage-01
description: Web observation of Horizon Europe CL2 2025 heritage call
- value:
observation_id: https://nde.nl/ontology/hc/observation/web/2025-11-28/nlhf-medium-grants
source_url: https://www.heritagefund.org.uk/funding/medium-grants
retrieved_on: '2025-11-28T14:00:00Z'
retrieved_by: glam-harvester/1.0
retrieval_method: playwright-scraper
has_or_had_status:
has_or_had_value: "200"
content_type: text/html
page_title: Medium grants | The National Lottery Heritage Fund
content_hash: sha256:a1b2c3d4e5f6789012345678901234567890abcdef1234567890abcdef123456
last_modified: '2025-11-15T09:00:00Z'
extraction_confidence: 0.88
extraction_notes: Extracted via Playwright scraper. Dynamic content fully rendered. Grant range and eligibility parsed from page sections.
observed_entity:
- https://nde.nl/ontology/hc/call/nlhf/medium-grants-2025-q4
previous_observation: https://nde.nl/ontology/hc/observation/web/2025-10-15/nlhf-medium-grants
content_changed: true
description: Web observation of National Lottery Heritage Fund grants page
- value:
observation_id: https://nde.nl/ontology/hc/observation/web/2025-11-29/wikidata-echoes
source_url: https://query.wikidata.org/sparql
retrieved_on: '2025-11-29T09:00:00Z'
retrieved_by: wikidata-mcp-server
retrieval_method: sparql-api
has_or_had_status:
has_or_had_value: "200"
content_type: application/sparql-results+json
extraction_confidence: 1.0
extraction_notes: SPARQL query for ECHOES/ECCCH Q-number (Q131381572). Structured API response with high confidence.
observed_entity:
- http://www.wikidata.org/entity/Q131381572
description: SPARQL query observation for Wikidata entity
annotations:
specificity_score: 0.1
specificity_rationale: Generic utility class/slot created during migration
custodian_types:
- '*'
custodian_types_rationale: Universal utility concept
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