498 lines
16 KiB
YAML
498 lines
16 KiB
YAML
# Storage Class - Physical storage facilities for heritage collections
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#
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# Represents storage facilities (depots, vaults, warehouses) where
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# heritage custodians preserve their collections.
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#
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# Wikidata references:
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# - Q1191732 (depot/storage facility)
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# - Q1454974 (archive storage)
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#
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# Generation date: 2025-11-29
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#
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id: https://nde.nl/ontology/hc/class/Storage
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name: storage_class
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title: Storage Class
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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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crm: http://www.cidoc-crm.org/cidoc-crm/
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premis: http://www.loc.gov/premis/rdf/v3/
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prov: http://www.w3.org/ns/prov#
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schema: http://schema.org/
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org: http://www.w3.org/ns/org#
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dcterms: http://purl.org/dc/terms/
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wd: http://www.wikidata.org/entity/
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rico: https://www.ica.org/standards/RiC/ontology#
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default_prefix: hc
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imports:
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- linkml:types
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- ./Custodian
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- ./AuxiliaryPlace
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- ./CustodianCollection
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- ./TimeSpan
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- ./StorageCondition
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- ./StorageConditionPolicy
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- ../enums/StorageTypeEnum
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- ../enums/StorageStandardEnum
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- ../slots/storage_location
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- ../slots/managed_by
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classes:
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Storage:
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class_uri: premis:StorageLocation
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description: |
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Physical storage facility where heritage collections are preserved.
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**DEFINITION**:
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A Storage represents a dedicated facility or area for preserving
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heritage materials. This includes archive depots, museum storage
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vaults, library stacks, and specialized storage for different
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material types.
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**Wikidata Alignment**:
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- Q1191732 (depot/storage facility)
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- Q1454974 (archive storage)
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- Q1280667 (art storage)
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**PREMIS Alignment**:
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`premis:StorageLocation` - "Information needed to retrieve a physical
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item from its physical storage location or a file from the storage
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system, or to access a bitstream within a file."
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PREMIS also provides:
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- `premis:StorageMedium` - Physical medium (tape, disk, etc.)
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- `premis:storedAt` - Links objects to storage location
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**RELATIONSHIP TO OTHER CLASSES**:
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```
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Custodian (hub)
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│
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├── storage_facilities → Storage[] (THIS CLASS)
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│ ├── storage_type (StorageTypeEnum)
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│ ├── storage_location → AuxiliaryPlace (physical site)
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│ ├── stores_collections → CustodianCollection[]
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│ ├── storage_conditions → StorageCondition[]
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│ └── condition_policy → StorageConditionPolicy
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│
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└── place_designation → CustodianPlace
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└── auxiliary_places → AuxiliaryPlace[]
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└── hosts_storage → Storage (inverse)
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```
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**KEY DISTINCTION**:
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- **Storage**: The FUNCTIONAL role of preserving collections
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- **AuxiliaryPlace**: The PHYSICAL location/building
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- **StorageCondition**: The ACTUAL observed state
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- **StorageConditionPolicy**: The INTENDED/designed conditions
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A single AuxiliaryPlace may host multiple Storage facilities
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(e.g., climate-controlled art storage + general depot in same building).
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**USE CASES**:
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1. **Archive Depot**:
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- storage_type: ARCHIVE_DEPOT
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- standards_applied: [ISO_TR_19815_2018, EN_16893_2018]
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- climate control: 18°C, 50% RH
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2. **Cold Storage for Film**:
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- storage_type: COLD_STORAGE
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- standards_applied: [IMAGE_PERMANENCE_INSTITUTE]
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- climate control: -18°C, 30% RH
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3. **Open Study Storage**:
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- storage_type: OPEN_STORAGE
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- accessible to researchers
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- combined storage/study function
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exact_mappings:
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- premis:StorageLocation
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- wikidata:Q1191732
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close_mappings:
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- crm:E27_Site
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- rico:Place
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- schema:Place
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related_mappings:
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- premis:StorageMedium
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- org:Site
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slots:
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- storage_id
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- storage_name
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- storage_type
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- storage_description
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- storage_location
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- capacity_description
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- capacity_linear_meters
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- capacity_cubic_meters
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- capacity_items
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- current_utilization_percent
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- stores_collections
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- standards_applied
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- condition_policy
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- storage_conditions
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- managed_by
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- valid_from
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- valid_to
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- temporal_extent
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- refers_to_custodian
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slot_usage:
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storage_id:
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slot_uri: dcterms:identifier
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description: |
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Unique identifier for this storage facility.
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Format: URI following NDE Heritage Custodian ontology conventions.
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range: uriorcurie
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required: true
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identifier: true
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examples:
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- value: "https://nde.nl/ontology/hc/storage/rijksmuseum-depot-amersfoort"
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description: "Rijksmuseum off-site depot"
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storage_name:
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slot_uri: crm:P87_is_identified_by
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description: |
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Human-readable name for this storage facility.
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CIDOC-CRM: P87_is_identified_by links place to appellation.
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range: string
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required: true
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examples:
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- value: "Depot Amersfoort"
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- value: "Cold Storage Vault A"
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- value: "Manuscript Storage Room 3"
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storage_type:
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slot_uri: dcterms:type
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description: |
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Type of storage facility from StorageTypeEnum.
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Classifies the storage by its primary function and the type
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of materials it is designed to hold.
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range: StorageTypeEnum
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required: true
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examples:
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- value: "ARCHIVE_DEPOT"
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- value: "COLD_STORAGE"
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- value: "ART_STORAGE"
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storage_description:
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slot_uri: dcterms:description
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description: |
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Free-text description of the storage facility.
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Include:
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- Purpose and function
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- Types of materials stored
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- Special features or equipment
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- Access restrictions
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- Historical context
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range: string
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examples:
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- value: >-
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Climate-controlled archive depot housing overflow document
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collections. Equipped with mobile shelving system (Compactus).
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Staff access only. Fire suppression: inert gas system.
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storage_location:
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slot_uri: premis:storedAt
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description: |
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Physical location where this storage facility is situated.
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Links to AuxiliaryPlace representing the building or site.
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Multiple Storage instances may share the same AuxiliaryPlace
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(e.g., different climate zones in one building).
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PREMIS: storedAt links objects to storage location.
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range: AuxiliaryPlace
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required: false
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examples:
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- value: "https://nde.nl/ontology/hc/aux-place/rijksmuseum-depot-amersfoort"
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capacity_description:
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slot_uri: dcterms:extent
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description: |
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Free-text description of storage capacity.
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Use when precise measurements not available or when capacity
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is better described qualitatively.
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range: string
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examples:
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- value: "Approximately 5,000 linear meters of shelving across 3 floors"
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- value: "Large-scale art storage for paintings up to 4m x 6m"
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capacity_linear_meters:
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slot_uri: schema:value
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description: |
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Total storage capacity in linear meters of shelving.
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Standard measurement for document and book storage.
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range: float
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examples:
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- value: 5000.0
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description: "5,000 linear meters"
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capacity_cubic_meters:
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slot_uri: schema:value
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description: |
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Total storage capacity in cubic meters.
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Used for three-dimensional object storage.
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range: float
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examples:
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- value: 2500.0
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description: "2,500 cubic meters"
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capacity_items:
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slot_uri: schema:value
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description: |
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Total storage capacity as number of items or containers.
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Used when shelving metrics not applicable (e.g., boxes, crates).
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range: integer
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examples:
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- value: 50000
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description: "Capacity for 50,000 archive boxes"
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current_utilization_percent:
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slot_uri: schema:value
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description: |
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Current storage utilization as percentage of total capacity.
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Helps identify when new storage is needed.
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Update date should be tracked in last assessment.
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range: float
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minimum_value: 0.0
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maximum_value: 100.0
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examples:
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- value: 85.5
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description: "85.5% of capacity currently used"
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stores_collections:
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slot_uri: crm:P46_is_composed_of
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description: |
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Collections or portions of collections stored in this facility.
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Links to CustodianCollection instances representing what is
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physically kept in this storage.
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CIDOC-CRM: P46_is_composed_of links aggregations to components.
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range: CustodianCollection
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multivalued: true
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inlined_as_list: true
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examples:
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- value:
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- "https://nde.nl/ontology/hc/collection/rijksmuseum-prints"
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- "https://nde.nl/ontology/hc/collection/rijksmuseum-drawings"
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standards_applied:
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slot_uri: dcterms:conformsTo
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description: |
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Storage standards that this facility is designed to meet.
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References StorageStandardEnum values for ISO, EN, or other
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recognized standards governing storage conditions.
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Dublin Core: conformsTo for standards compliance.
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range: StorageStandardEnum
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multivalued: true
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examples:
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- value:
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- "ISO_TR_19815_2018"
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- "EN_16893_2018"
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- "EN_15757_2010"
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condition_policy:
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slot_uri: premis:policy
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description: |
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Storage condition policy defining intended environmental parameters.
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Links to StorageConditionPolicy which specifies target temperature,
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humidity, and other conditions designed by the custodian.
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PREMIS: policy links objects to preservation policies.
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range: StorageConditionPolicy
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examples:
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- value: "https://nde.nl/ontology/hc/policy/rijksmuseum-depot-climate"
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storage_conditions:
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slot_uri: prov:wasInfluencedBy
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description: |
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Observed storage conditions - actual reports of facility state.
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Links to StorageCondition instances representing assessments
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of the facility's actual conditions at specific points in time.
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**CRITICAL**: These are OBSERVATIONS of actual conditions,
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which may differ from the condition_policy (designed conditions).
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Observations can come from internal staff, external inspectors,
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journalists, or any observer.
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PROV-O: wasInfluencedBy links entities to influencing activities.
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range: StorageCondition
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multivalued: true
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inlined_as_list: true
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managed_by:
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slot_uri: org:hasUnit
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description: |
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Organizational unit responsible for managing this storage.
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Links to OrganizationalStructure or staff role responsible
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for storage operations and maintenance.
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W3C ORG: hasUnit for organizational relationships.
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range: string
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examples:
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- value: "Collections Management Department"
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- value: "Facilities and Security Team"
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valid_from:
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slot_uri: schema:validFrom
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description: |
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Date when this storage facility became operational.
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range: date
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examples:
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- value: "1995-06-01"
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valid_to:
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slot_uri: schema:validThrough
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description: |
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Date when this storage facility was decommissioned.
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NULL if still active.
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range: date
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temporal_extent:
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slot_uri: crm:P4_has_time-span
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description: |
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Fuzzy temporal period for storage facility operation.
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CIDOC-CRM: P4_has_time-span for uncertain dates.
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range: TimeSpan
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refers_to_custodian:
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slot_uri: org:siteOf
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description: |
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The Custodian hub that operates this storage facility.
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W3C ORG: siteOf links site to organization.
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range: Custodian
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required: true
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comments:
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- "Storage models the FUNCTIONAL role of preservation, not just physical location"
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- "Links to AuxiliaryPlace for physical building/site information"
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- "Condition observations (StorageCondition) may come from internal or external sources"
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- "Condition policy (StorageConditionPolicy) represents designed/intended state"
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- "Actual conditions may differ significantly from policy - this is critical for transparency"
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- "Multiple Storage instances can exist at same AuxiliaryPlace (different zones)"
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see_also:
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- "http://www.loc.gov/premis/rdf/v3/StorageLocation"
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- "https://www.wikidata.org/wiki/Q1191732"
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- "http://www.cidoc-crm.org/html/cidoc_crm_v7.1.3.html#E27"
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examples:
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- value:
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storage_id: "https://nde.nl/ontology/hc/storage/rijksmuseum-depot-amersfoort"
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storage_name: "Depot Amersfoort"
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storage_type: "ART_STORAGE"
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storage_description: |
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Off-site storage depot for Rijksmuseum overflow collections.
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Climate-controlled facility housing paintings, sculptures,
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and decorative arts not currently on display.
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storage_location: "https://nde.nl/ontology/hc/aux-place/rijksmuseum-depot-amersfoort"
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capacity_linear_meters: 8000.0
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current_utilization_percent: 78.5
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standards_applied:
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- "EN_16893_2018"
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- "EN_15757_2010"
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refers_to_custodian: "https://nde.nl/ontology/hc/nl-nh-ams-m-rm-q190804"
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description: "Rijksmuseum off-site art storage depot"
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- value:
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storage_id: "https://nde.nl/ontology/hc/storage/nationaal-archief-depot-b"
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storage_name: "Depot B - Cold Storage"
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storage_type: "COLD_STORAGE"
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storage_description: |
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Refrigerated vault for film negatives, photographic materials,
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and temperature-sensitive documents. Maintained at 4°C, 35% RH.
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capacity_description: "1,200 linear meters of cold storage shelving"
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standards_applied:
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- "IMAGE_PERMANENCE_INSTITUTE"
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- "ISO_TR_19815_2018"
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refers_to_custodian: "https://nde.nl/ontology/hc/nl-na"
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description: "National Archives cold storage for photographic materials"
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# Slot definitions (basic - detailed in class slot_usage)
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slots:
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storage_id:
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description: Unique identifier for storage facility
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range: uriorcurie
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storage_name:
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description: Name of storage facility
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range: string
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storage_type:
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description: Type of storage from StorageTypeEnum
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range: StorageTypeEnum
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storage_description:
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description: Description of storage facility
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range: string
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# NOTE: storage_location imported from global slot ../slots/storage_location.yaml
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# Use slot_usage in class to customize range
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capacity_description:
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description: Qualitative capacity description
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range: string
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capacity_linear_meters:
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description: Capacity in linear meters
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range: float
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capacity_cubic_meters:
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description: Capacity in cubic meters
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range: float
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capacity_items:
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description: Capacity as number of items
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range: integer
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current_utilization_percent:
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description: Current utilization percentage
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range: float
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stores_collections:
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description: Collections stored in this facility
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range: CustodianCollection
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multivalued: true
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standards_applied:
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description: Standards this storage conforms to
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range: StorageStandardEnum
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multivalued: true
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condition_policy:
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description: Designed condition policy
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range: StorageConditionPolicy
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storage_conditions:
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description: Observed condition reports
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range: StorageCondition
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multivalued: true
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# NOTE: managed_by imported from global slot ../slots/managed_by.yaml
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