Section 65 of 103
64. Identity Scope, Hierarchy and Inheritance
Stable section ID: S05-CON-015-SECTION-65 · 14 content blocks
Identity Scope defines the boundary within which an identifier is unique, authoritative, and applicable. Scope may be global, organizational, regional, project-specific, product-family, document, assembly, or local-system based.
Identity Hierarchy is the controlled relationship among identities at different levels, such as:
Product Family;
Product Type;
product instance;
Cartridge or Component;
Module or Assembly;
Building;
site or portfolio.
Identity Inheritance is the controlled acquisition of applicable attributes, classifications, requirements, or relationships from a parent identity or type definition.
Inheritance shall not cause distinct entities to share the same identity. A product instance may inherit characteristics from its Product Type while retaining its own unique instance identity.
Inherited information shall identify its source and version. Instance-specific information shall override inherited default information only where the governing schema permits the change.
Certification, inspection status, ownership, damage history, maintenance status, and physical location shall not be inherited merely because entities belong to the same family or Assembly.
Identity relationships shall remain explicit, machine-readable, versioned, and auditable.