description: >
    Implement to define extended manufacturing data for inventory items.

properties:
    - name: ExtendedMFGData
      type: dict[string, string]
      description: >
          A dictionary of manufacturer-specific extended data fields, which may
          contain fields such as manufacturing plant, lot number, etc.

          These fields must not be used for programmatic interrogation of an
          inventory object but may be useful for various human-oriented tasks,
          such as part failure analysis.  Any field needed for programmatic
          interrogation should be promoted to a first-class property in another
          Item or Decorator interface.