# Class Multilingual Support Rule

## Rule: All Class Files Must Include Multilingual Descriptions and Aliases

Every class file must provide `alt_descriptions` and `structured_aliases` in all supported languages to ensure internationalization and interoperability with multilingual heritage systems.

### Required Languages

| Code | Language |
|------|----------|
| `nl` | Dutch |
| `de` | German |
| `fr` | French |
| `es` | Spanish |
| `ar` | Arabic |
| `id` | Indonesian |
| `zh` | Chinese |

### Structure

#### alt_descriptions

Provide translated descriptions for each supported language:

```yaml
classes:
  AcademicArchiveRecordSetType:
    description: >-
      Category for grouping documentary materials accumulated by tertiary
      educational institutions during their administrative, academic, and
      operational activities.
    alt_descriptions:
      nl: >-
        Categorie voor het groeperen van documentair materiaal dat door
        hogeronderwijsinstellingen is verzameld tijdens hun administratieve,
        academische en operationele activiteiten.
      de: >-
        Kategorie zur Gruppierung von Dokumentenmaterial, das von Hochschulen
        während ihrer administrativen, akademischen und betrieblichen Aktivitäten
        angesammelt wurde.
      fr: >-
        Catégorie de regroupement des documents accumulés par les établissements
        d'enseignement supérieur au cours de leurs activités administratives,
        académiques et opérationnelles.
      es: >-
        Categoría para agrupar materiales documentales acumulados por instituciones
        de educación superior durante sus actividades administrativas, académicas
        y operativas.
      ar: >-
        فئة لتجميع المواد الوثائقية التي جمعتها مؤسسات التعليم العالي
        خلال أنشطتها الإدارية والأكاديمية والتشغيلية.
      id: >-
        Kategori untuk mengelompokkan materi dokumenter yang dikumpulkan oleh
        institusi pendidikan tinggi selama aktivitas administratif, akademik,
        dan operasional mereka.
      zh: >-
        高等教育机构在行政、学术和运营活动中积累的文献材料的分类类别。
```

#### structured_aliases

Provide language-specific aliases/alternative names:

```yaml
classes:
  AcademicArchiveRecordSetType:
    structured_aliases:
    - literal_form: academisch archiefbestand
      in_language: nl
    - literal_form: Hochschularchivbestand
      in_language: de
    - literal_form: fonds d'archives académiques
      in_language: fr
    - literal_form: fondo de archivo académico
      in_language: es
    - literal_form: أرشيف أكاديمي
      in_language: ar
    - literal_form: koleksi arsip akademik
      in_language: id
    - literal_form: 学术档案集
      in_language: zh
```

### Complete Example

```yaml
id: https://nde.nl/ontology/hc/class/AcademicArchiveRecordSetType
name: AcademicArchiveRecordSetType
title: Academic Archive Record Set Type
prefixes:
  linkml: https://w3id.org/linkml/
  hc: https://nde.nl/ontology/hc/
  skos: http://www.w3.org/2004/02/skos/core#
default_prefix: hc
imports:
  - linkml:types
  - ../classes/CollectionType
classes:
  AcademicArchiveRecordSetType:
    description: >-
      Category for grouping documentary materials accumulated by tertiary
      educational institutions during their administrative, academic, and
      operational activities.
    alt_descriptions:
      nl: >-
        Categorie voor het groeperen van documentair materiaal dat door
        hogeronderwijsinstellingen is verzameld.
      de: >-
        Kategorie zur Gruppierung von Dokumentenmaterial, das von Hochschulen
        angesammelt wurde.
      fr: >-
        Catégorie de regroupement des documents accumulés par les établissements
        d'enseignement supérieur.
      es: >-
        Categoría para agrupar materiales documentales acumulados por instituciones
        de educación superior.
      ar: >-
        فئة لتجميع المواد الوثائقية التي جمعتها مؤسسات التعليم العالي.
      id: >-
        Kategori untuk mengelompokkan materi dokumenter yang dikumpulkan oleh
        institusi pendidikan tinggi.
      zh: >-
        高等教育机构积累的文献材料的分类类别。
    structured_aliases:
    - literal_form: academisch archiefbestand
      in_language: nl
    - literal_form: Hochschularchivbestand
      in_language: de
    - literal_form: fonds d'archives académiques
      in_language: fr
    - literal_form: fondo de archivo académico
      in_language: es
    - literal_form: أرشيف أكاديمي
      in_language: ar
    - literal_form: koleksi arsip akademik
      in_language: id
    - literal_form: 学术档案集
      in_language: zh
    is_a: CollectionType
    # ... rest of class definition
```

### Translation Guidelines

1. **Accuracy over literal translation**: Translate the concept, not word-by-word
2. **Use domain-appropriate terminology**: Use archival/library/museum terminology standard in each language
3. **Consult existing vocabularies**: Reference RiC-O, ISAD(G), AAT translations when available
4. **Maintain consistency**: Same term should be translated consistently across all class files

### Checklist

For each class file, verify:

- [ ] `alt_descriptions` present with all 7 languages
- [ ] `structured_aliases` present with all 7 languages
- [ ] Translations are accurate and domain-appropriate
- [ ] Arabic text is properly encoded (RTL)
- [ ] Chinese uses simplified characters (zh) unless traditional specified (zh-hant)