The physical quantity (e.g., 'temperature', 'mass').
The primitive data type (e.g., string, boolean).
The structure of complex objects.
OptionalrangeA continuous range between two boundary conditions.
OptionalstructStructured object for complex data sets.
OptionalunitThe unit identification for physical quantities.
OptionalvalueA single data point.
OptionalvaluesA collection of discrete data points.
Interface defining the possible fields for various value representations.