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6.13.2.17 PropertyDefinition

6.13.2.17.1 Purpose

The fixed constants of an observation type, such as the material sampled (matrix) and the substance measured (analyte), selected by its profile family.

6.13.2.17.2 Fields

Field Type Cardinality Description
matrix CodedValue 0..1
parameters typed constants of the family 1..1

6.13.2.17.3 Relationships

Uses types

CodedValue

Used by

6.13.2.17.4 Rules & constraints

  • Immutable catalog constants, selected by profile_family; their closed schemas are in the canonical type catalog.
  • Milk requires a versioned matrix=milk code. Constants identify analyte/target, chemical form, denominator, count basis and scale as applicable.
  • Matrix, unit, categories, allowed_subjects and schema references stay in their dedicated fields, not duplicated in parameters.
  • The closed family schema declares required fields/enums/CodedValue references; undeclared fields are invalid.
  • Template choices are resolved before activating a concrete ObservationType; no unresolved wildcard or free JSON.
  • Different semantic constants select distinct profiles, never silently reinterpret observations under the same code.