glam/frontend/public/schemas/20251121/linkml/modules/classes/Medienzentrum.yaml
kempersc dfa667c90f Fix LinkML schema for valid RDF generation with proper slot_uri
Summary:
- Create 46 missing slot definition files with proper slot_uri values
- Add slot imports to main schema (01_custodian_name_modular.yaml)
- Fix YAML examples sections in 116+ class and slot files
- Fix PersonObservation.yaml examples section (nested objects → string literals)

Technical changes:
- All slots now have explicit slot_uri mapping to base ontologies (RiC-O, Schema.org, SKOS)
- Eliminates malformed URIs like 'custodian/:slot_name' in generated RDF
- gen-owl now produces valid Turtle with 153,166 triples

New slot files (46):
- RiC-O slots: rico_note, rico_organizational_principle, rico_has_or_had_holder, etc.
- Scope slots: scope_includes, scope_excludes, archive_scope
- Organization slots: organization_type, governance_authority, area_served
- Platform slots: platform_type_category, portal_type_category
- Social media slots: social_media_platform_category, post_type_*
- Type hierarchy slots: broader_type, narrower_types, custodian_type_broader
- Wikidata slots: wikidata_equivalent, wikidata_mapping

Generated output:
- schemas/20251121/rdf/01_custodian_name_modular_20260107_134534_clean.owl.ttl (6.9MB)
- Validated with rdflib: 153,166 triples, no malformed URIs
2026-01-07 13:48:03 +01:00

60 lines
1.8 KiB
YAML

# Medienzentrum - Media Center
# Refactored with LinkML geographic restriction pattern
# Wikidata: Q1284615
id: https://w3id.org/nde/ontology/Medienzentrum
name: Medienzentrum
title: Medienzentrum (Media Center)
prefixes:
linkml: https://w3id.org/linkml/
imports:
- linkml:types
- ./ArchiveOrganizationType
- ./CollectionType
classes:
Medienzentrum:
is_a: ArchiveOrganizationType
class_uri: skos:Concept
description: |
Media center (Medienzentrum). In German-speaking countries, a
Medienzentrum is an institution that provides media resources
and services, primarily for educational purposes.
**Wikidata**: Q1284615
**Geographic Restriction**: Germany (DE) only.
This constraint is enforced via LinkML `rules` with `postconditions`.
**Scope**:
Medienzentren provide:
- Educational films and videos (lending)
- Digital media resources for teaching
- Media production facilities
- Equipment loans for schools
- Teacher training in media use
- Media literacy programs
- Online platforms for digital content
**Organizational Types**:
- Kreismedienzentrum (district level)
- Stadtmedienzentrum (city level)
- Landesmedienzentrum (state level)
**Historical Context**:
Medienzentren evolved from:
- Bildstellen (Q861125) - Visual media service units
- Landesbildstellen - State-level visual media centers
- School film libraries
Many Bildstellen were merged into Medienzentren as analog
media transitioned to digital formats.
**Related Types**:
- Bildstelle (Q861125) - Predecessor institution
- AudiovisualArchive (Q27030766) - Broader AV preservation
- MediaArchive - Generic media archives
- EducationProvider - Educational institutions
slot_usage: