ISO 10303-214:2010(E)

Figure — Arrowleft Figure — Clause 4 Figure — Arrowright

4.2.427 Property

A Property is the definition of a particular quality.

NOTE A property may reflect physics or arbitrary user defined measurements.

Each Property is a Cost_property, a Quality_property, a Duration_property, a Material_property, a General_property, a Recyclability_property, or a Mass_property.

The data associated with a Property are the following:

4.2.427.1 allowed_unit

The allowed_unit specifies the unit or set of units that are accepted.

EXAMPLE A company may accept a mass specified in kilograms or tons, but not in grams or pounds.

A Property_value representing the Property shall not be expressed with a Unit that is not contained in the allowed_unit, if the allowed_unit is specified. If specified, the 'global_unit' attribute of a Property_value_representation representing the Property shall be contained in the allowed_unit, if the allowed_unit is specified.

See property to unit for the application assertion.

4.2.427.2 description

The description specifies additional information about the Property.

See property to multi_language_string for the application assertion.

The description need not be specified for a particular Property.

If present, there shall be exactly one object that defines the description for a Property.

4.2.427.3 id

The id specifies the identifier of the Property.

4.2.427.4 property_source

The property_source specifies the External_library_reference or Plib_property_reference object that defines this kind of property.

See property to external_library_reference and property to plib_property_reference for the application assertions.

The property_source need not be specified for a particular Property.

If present, there shall be exactly one object that defines the property_source for a Property.

4.2.427.5 version_id

The version_id specifies the identification of a particular version of a Property.

The version_id need not be specified for a particular Property.



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