ISO 10303-214:2010(E)

Figure — Arrowleft Figure — Clause 4 Figure — Arrowright

4.2.450 Replaced_usage_relationship

A Replaced_usage_relationship is a relationship between two Item_instance objects where the relating Item_instance is replaced by the related Item_instance.

Each Replaced_usage_relationship shall be referenced by an Effectivity that defines the validity of the replacement.

A Replaced_usage_relationship is a type of Item_instance_relationship.

The data associated with a Replaced_usage_relationship are the following:

4.2.450.1 description

The description specifies additional information about the Replaced_usage_relationship.

See replaced_usage_relationship to multi_language_string for the application assertion.

The description need not be specified for a particular Replaced_usage_relationship.

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

4.2.450.2 usage_context

The usage_context specifies the object that identifies the context in which the replacement is applicable. In the case, where the usage_context refers to a Process_operation_input_or_output, the 'relating' Item_instance shall be referred to as 'element' by the Process_operation_input_or_output. In the case, where the usage_context refers to an Item_definition_instance_relationship, the 'relating' Item_instance shall be referred to as 'related' by the Item_definition_instance_relationship. In the case, where the usage_context refers to a Product_structure_relationship, the 'relating' Item_instance shall be referred to as 'related' by the Product_structure_relationship.

See replaced_usage_relationship to item_definition_instance_relationship, replaced_usage_relationship to process_operation_input_or_output, and replaced_usage_relationship to product_structure_relationship for the application assertions.

There shall be exactly one object that defines the usage_context for a Replaced_usage_relationship.



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