ISO 10303-214:2010(E)
This unit of functionality specifies various properties for product data like parts, documents, activities and process plan data.
It contains two concepts for assigning properties to product data: the simple property concept and the independent property concept (see also figure G.27).
- value determination (calculated, measured, …),
- qualifying of the property value (nominal, typical, …),
- global unit assignment for all values of this property,
- sharing of properties.
Table 2 expresses the correspondence between the simple property concept and the independent property concept.
Simple property concept |
Independent property concept |
simple_property_association |
property_value_association <= (item_property_association) (process_property_association) |
.value_type |
property_value_association |
.specified_value
|
property_value_association |
.described_element |
property_value_association <= |
In addition, the independent property concept specifies various predefined properties, such as material, cost, recyclability,quality, or mass.
The information about recyclability is required to describe whether and how material or component parts may be reused. The costs, as planned or calculated for a part, as well as a quality measure property to keep track of the results of some processes, e.g., prototype building, may be specified. The mass is required to express the weight of a part. Shape related properties that are rotation and translation invariant such as the centre of mass and the moments of inertia may also be specified.
The general properties are required to define property data which are not covered by one of the predefined properties, and, due to their variety, cannot be specified all by explicit application objects.
EXAMPLE Noise development of an engine, maintenance intervals of parts, and heat or noise absorption of insulating parts between the engine and passenger compartment are examples for general properties.
Shape related properties that are rotation and translation invariant such as the centre of mass and the moments of inertia may also be specified.
The following application objects are used by the item_property UoF:
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