Notes
Business Services in CSDM are intentionally single-level — they do not form parent-child hierarchies. Relationships between services are expressed using Depends on/Used by relationship types rather than nesting. This keeps Business Services as clean, consumer-facing entities with clear ownership boundaries, avoiding the complexity of nested service hierarchies that obscure accountability and complicate change approvals. https://www.servicenow.com/docs/bundle/washingtondc-servicenow-platform/page/product/csdm/concept/csdm-overview.html