# Legal Responsibility Collection - Quick Reference

**Status**: ✅ COMPLETE | **Date**: 2025-11-22

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## 🎯 TL;DR

Created `LegalResponsibilityCollection` subclass following TOOI ontology pattern for **informatieobjecten** (information objects) under legal responsibility of **overheidsorganisaties** (government organizations).

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## 📁 New Files

1. **`modules/classes/LegalResponsibilityCollection.yaml`** - Main class
2. **`modules/slots/collections_under_responsibility.yaml`** - Reverse link
3. **`modules/slots/responsible_legal_entity.yaml`** - Forward link
4. **`modules/slots/legal_responsibility_basis.yaml`** - Legal foundation
5. **`modules/slots/legal_responsibility_start_date.yaml`** - Start date
6. **`modules/slots/legal_responsibility_end_date.yaml`** - End date

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## 🔗 Key Relationships

```yaml
# Forward: Collection → Legal Entity
LegalResponsibilityCollection:
  responsible_legal_entity: ".../legal/nha-organization"

# Reverse: Legal Entity → Collections
CustodianLegalStatus:
  collections_under_responsibility:
    - ".../collection/nha-provincial-archive"
```

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## 🆚 Distinctions

| What | LegalResponsibilityCollection | CustodianCollection |
|------|------------------------------|---------------------|
| **Legal accountability?** | Yes (documented) | Optional |
| **Required property** | `responsible_legal_entity` | None |
| **Example** | Government archive under Archiefwet | Private collection |

| What | responsible_legal_entity | managing_unit |
|------|-------------------------|---------------|
| **Level** | Top-level legal accountability | Operational management |
| **Range** | `CustodianLegalStatus` | `OrganizationalStructure` |
| **Example** | Stichting Rijksmuseum | Paintings Department |

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## 📝 Usage Example

```yaml
LegalResponsibilityCollection:
  id: "https://nde.nl/ontology/hc/collection/nha-provincial"
  collection_name: "Noord-Hollands Archief - Provinciaal Archief"
  
  # Legal responsibility
  responsible_legal_entity: ".../legal/nha-organization"
  legal_responsibility_basis: "Archiefwet 1995, Article 41"
  legal_responsibility_start_date: "2001-01-01"
  
  # Links to hub
  refers_to_custodian: ".../nl-nh-haa-a-nha"
```

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## 🔍 SPARQL Quick Query

```sparql
# Find collections under legal responsibility
PREFIX hc: <https://nde.nl/ontology/hc/class/>

SELECT ?collection ?name
WHERE {
  <.../legal/nha-organization> 
    hc:collections_under_responsibility ?collection .
  ?collection hc:collection_name ?name .
}
```

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## ⏳ Next Steps

1. ✅ Schema integration complete
2. ⏳ Regenerate RDF with full timestamps
3. ⏳ Create validation tests
4. ⏳ Update UML diagrams for LegalResponsibilityCollection

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**See**: `LEGAL_RESPONSIBILITY_COLLECTION_COMPLETE.md` for full documentation