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glam/schemas/20251121/linkml/modules/classes/DarkArchive.yaml
kempersc f7bf1cc5ae Refactor schema slots and classes 
- Deleted obsolete slot definitions: statement_summary, statement_text, statement_type, status_name, supersede_articles, supersede_condition, supersede_name, temporal_dynamics, total_amount, typical_contents, use_cases, was_acquired_through, was_fetched_at, was_retrieved_at.
- Updated existing slot definitions for states_or_stated to enhance clarity and structure.
- Introduced new classes: Article, ConditionofAccess, FinancialStatementType, MaximumQuantity, Series, Summary, Type, and their respective slots to improve schema organization and usability.
- Added new slots: changes_or_changed_through, has_or_had_condition_of_access, has_or_had_heritage_type, is_or_was_part_of_series, is_or_was_retrieved_at, maximum_of_maximum to capture additional metadata and relationships.
2026-01-30 00:29:31 +01:00

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YAML
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id: https://nde.nl/ontology/hc/class/DarkArchive
name: dark_archive_class
title: Dark Archive Type
prefixes:
linkml: https://w3id.org/linkml/
schema: http://schema.org/
hc: https://nde.nl/ontology/hc/
skos: http://www.w3.org/2004/02/skos/core#
wd: http://www.wikidata.org/entity/
premis: http://www.loc.gov/premis/rdf/v3/
rico: https://www.ica.org/standards/RiC/ontology#
default_prefix: hc
imports:
- linkml:types
- ./ArchiveOrganizationType
- ./AccessPolicy
- ../slots/has_or_had_embargo_end_date
- ./DarkArchiveRecordSetTypes
- ../slots/hold_or_held_record_set_type
- ./CollectionType
- ../slots/has_or_had_scope
- ./Scope
- ../slots/has_or_had_type
- ../slots/preservation_purpose
- ../slots/refers_to_access_policy
- ../slots/specificity_annotation
- ../slots/has_or_had_score
- ../slots/has_or_had_identifier
- ./WikiDataIdentifier
- ./SpecificityAnnotation
- ./TemplateSpecificityScore
- ./TemplateSpecificityType
- ./TemplateSpecificityTypes
- ../slots/has_or_had_access_trigger_event
- ./DarkArchiveRecordSetType
classes:
DarkArchive:
is_a: ArchiveOrganizationType
class_uri: schema:ArchiveOrganization
slots:
- has_or_had_access_trigger_event
- has_or_had_type
- has_or_had_embargo_end_date
- hold_or_held_record_set_type
- preservation_purpose
- refers_to_access_policy
- specificity_annotation
- has_or_had_score
- has_or_had_identifier
description: "Archive preserving materials for future use but with NO CURRENT ACCESS.\n\n**Wikidata**: Q112796578 (Dark Archive)\n\n**DEFINITION**:\n\nDark Archive is a preservation repository where materials are stored with \nNO ACCESS provided to users. The primary purpose is long-term preservation\nrather than current use. Access may be triggered by specific future events.\n\n**ACCESS SPECTRUM** (Light/Dim/Dark classification):\n\n| Type | Access Level | Purpose |\n|------|--------------|---------|\n| Light Archive (Q112815447) | Broadly accessible | Discovery & use |\n| Dim Archive (Q112796779) | Limited access | Selective access |\n| **Dark Archive** | No current access | Preservation only |\n\n**COMMON USE CASES**:\n\n1. **Digital Preservation**\n - Trusted Digital Repositories (TDR)\n - Backup/disaster recovery copies\n - Integrity verification archives\n\n2. **Rights-Restricted Content**\n - Orphan works awaiting rights clearance\n - Embargoed materials\n - Donor\
\ restrictions (sealed for X years)\n\n3. **Sensitive Materials**\n - Security-classified records\n - Privacy-protected personal data\n - Legally sealed court records\n\n4. **Format Migration**\n - Source materials preserved after migration\n - Original files kept for verification\n\n**TRIGGER EVENTS** (when dark becomes accessible):\n- Expiration of embargo period\n- Rights clearance obtained\n- Donor permission granted\n- Declassification decision\n- Original system failure (disaster recovery)\n\n**MULTILINGUAL LABELS**:\n- Dark Archive (de) [uses English term]\n\n**RELATED TYPES**:\n- LightArchive (Q112815447) - broadly accessible\n- DimArchive (Q112796779) - limited access\n- ClosedSpace - physical restricted access areas\n\n**ONTOLOGICAL ALIGNMENT**:\n- **SKOS**: skos:Concept (type classification)\n- **PREMIS**: premis:RightsStatus for access restrictions\n- **RiC-O**: rico:RecordSet with access restrictions\n- **Wikidata**: Q112796578\n\n**PREMIS INTEGRATION**:\n\n\
Dark archives typically use PREMIS for preservation metadata:\n- `premis:RightsStatus` to document access restrictions\n- `premis:endDate` for embargo expiration dates\n- `premis:Agent` to identify the responsible custodian\n"
slot_usage:
has_or_had_identifier: null
has_or_had_access_trigger_event:
range: string
multivalued: true
examples:
- value:
- embargo_expiration
- rights_clearance
- disaster_recovery
has_or_had_embargo_end_date:
range: date
examples:
- value: '2050-01-01'
description: 50-year embargo ending
preservation_purpose:
range: string
examples:
- value: disaster_recovery
- value: rights_pending
- value: donor_restriction
refers_to_access_policy:
range: AccessPolicy
required: true
has_or_had_type:
equals_expression: '["hc:ArchiveOrganizationType"]'
exact_mappings:
- wd:Q112796578
close_mappings:
- premis:RightsStatus
- rico:RecordSet
- skos:Concept
broad_mappings:
- wd:Q166118
related_mappings:
- wikidata:Q112815447
- wikidata:Q112796779
comments:
- Dark archives preserve materials with NO current access
- Access may be triggered by future events (embargo end, rights clearance)
- Common for digital preservation, disaster recovery, rights-pending content
- Part of Light/Dim/Dark access spectrum classification
- PREMIS metadata used for preservation and rights documentation
see_also:
- https://www.wikidata.org/wiki/Q112796578
- http://www.loc.gov/premis/
examples:
- value:
has_or_had_identifier: https://nde.nl/ontology/hc/type/archive/Q112796578
has_or_had_type_code: ARCHIVE
has_or_had_label:
- Dark Archive@en
- Dark Archive@de
has_or_had_description: Collection preserved for future use with no current access
preservation_purpose: disaster_recovery
has_or_had_access_trigger_event:
- primary_system_failure
- disaster_declaration
refers_to_access_policy:
policy_id: https://nde.nl/ontology/hc/policy/dark-archive-dr
access_level: CLOSED
restriction_reason: Disaster recovery copy - access on system failure only
description: Disaster recovery dark archive
- value:
has_or_had_identifier: https://nde.nl/ontology/hc/type/archive/Q112796578-embargo
has_or_had_type_code: ARCHIVE
has_or_had_label:
- Embargoed Dark Archive@en
has_or_had_description: Materials under embargo with future access date
preservation_purpose: donor_restriction
has_or_had_embargo_end_date: '2050-01-01'
has_or_had_access_trigger_event:
- embargo_expiration
refers_to_access_policy:
policy_id: https://nde.nl/ontology/hc/policy/embargo-50yr
access_level: CLOSED
restriction_reason: Donor restriction - 50 year embargo
description: Embargoed materials dark archive
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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