{"L1_core": {"domain": "commercial", "category": "supplier", "entity_type": "entity"}, "L5_metadata": {"updated": "2026-01-02", "version": "2.0"}, "L2_commercial": {"master_data": {"quality": ["certifications", "audits", "internal_rating"], "commercial": ["payment_terms", "currency", "incoterms", "lead_time"], "identification": ["supplier_code", "name", "VAT", "addresses"]}, "classification": {"by_type": ["raw_materials", "components", "services", "subcontracting"], "by_criticality": ["strategic", "preferred", "alternative", "occasional"]}, "supplier_management": ["periodic_evaluation", "development", "contingency_plans"]}}