# Quick Status - Appellation/Identifier Refactoring Complete ✅

**Date**: 2025-11-22  
**Time**: Completed  
**Status**: ✅ ALL CHANGES COMPLETE

## What We Did

### Renamed Classes
- `Appellation` → `CustodianAppellation` (CIDOC-CRM E41_Appellation)
- `Identifier` → `CustodianIdentifier` (CIDOC-CRM E42_Identifier)

### Added Bidirectional Links

**Forward Properties** (Custodian → Appellation/Identifier):
```yaml
Custodian:
  slots:
    - appellations        # crm:P1_is_identified_by → CustodianAppellation
    - identifiers         # crm:P48_has_preferred_identifier → CustodianIdentifier
```

**Inverse Properties** (Appellation/Identifier → Custodian):
```yaml
CustodianAppellation:
  slots:
    - identifies_custodian  # crm:P1i_identifies → Custodian

CustodianIdentifier:
  slots:
    - identifies_custodian  # crm:P48i_is_preferred_identifier_of → Custodian
```

### Files Modified

**Classes** (5 files):
1. ✅ `modules/classes/Appellation.yaml` - Renamed to CustodianAppellation, added inverse slot
2. ✅ `modules/classes/Identifier.yaml` - Renamed to CustodianIdentifier, added inverse slot
3. ✅ `modules/classes/Custodian.yaml` - Added `appellations` and `identifiers` slots
4. ✅ `modules/classes/CustodianObservation.yaml` - Updated range to CustodianAppellation
5. ✅ `modules/classes/CustodianReconstruction.yaml` - Updated range to CustodianIdentifier

**Slots** (3 files):
1. ✅ `modules/slots/identifiers.yaml` - Updated to use crm:P48_has_preferred_identifier
2. ✅ `modules/slots/appellations.yaml` - NEW FILE (forward property)
3. ✅ `modules/slots/identifies_custodian.yaml` - NEW FILE (inverse property)

**Main Schema** (1 file):
1. ✅ `01_custodian_name_modular.yaml` - Added new slot imports, updated file count

### Total Files: 86 (+2)
- 17 classes (renamed, no new classes)
- 6 enums (no change)
- 61 slots (+2 new: appellations, identifies_custodian)
- 1 metadata + 1 main schema

## Validation

✅ **Schema compiles successfully**:
```bash
$ gen-owl -f ttl schemas/20251121/linkml/01_custodian_name_modular.yaml
# PASS with expected namespace warnings
```

## Hub Architecture Now Complete

```
Custodian (Hub)
    ├── crm:P1_is_identified_by ───→ CustodianAppellation
    │                                     └── crm:P1i_identifies ───→ (back)
    │
    └── crm:P48_has_preferred_identifier ───→ CustodianIdentifier
                                                └── crm:P48i_is_preferred_identifier_of ───→ (back)
```

## Next Steps

1. ⏳ **Regenerate RDF** - All 8 formats need regeneration
2. ⏳ **Update UML diagrams** - Show new bidirectional relationships
3. ⏳ **Create example instances** - Demonstrate bidirectional linking in practice
4. ⏳ **Update documentation** - Architecture guides, usage examples

## Documentation

📄 **Complete Details**: See `APPELLATION_IDENTIFIER_REFACTORING_20251122.md`

## Context

This completes the **Legal Entity Refactoring** session (2025-11-22):
1. ✅ Legal entity model (8 new classes)
2. ✅ RDF generation (7 formats, 2,701 triples)
3. ✅ UML diagrams (Mermaid + PlantUML)
4. ✅ Appellation/Identifier connection to Custodian hub ← **THIS STEP**

---

**Ready for**: RDF regeneration, UML updates, example creation