Conformance

An implementation that claims conformance to this DEX shall support:

• the following implementation methods:
• ISO 10303-21 [3];
• ISO 10303-28 edition 2 [4].
• the EXPRESS entities listed in the Table List of entities below and specified in the DEX EXPRESS Schema (task_set.exp) and DEX XML Schema (task_set.xsd) which are subsets of ISO 10303-239: Product Life Cycle Support EXPRESS Schema (ap239_arm_lf.exp) and XML Schema (ap239_arm_lf.xsd) respectively;
• the Reference Data classes listed in the Reference Data section.

All instantiations of the entities must conform to the instantiation patterns specified in the Templates identified by this DEX.

Where the implementation method is ASCII (ISO 10303-21) the instance data must conform to the DEX EXPRESS Schema (task_set.exp). Where the implementation method is XML (ISO 10303-28 edition 2) the instance data must conform to the DEX XML Schema (task_set.xsd).

Additional guidance on conformance is being developed by the OASIS PLCS Technical Committee. Draft pages can be seen at http://www.plcs-resources.org/plcs/dexlib/help/dex/implementer.htm. When complete, the relevant pages will be released as part of a future update to this DEX.

EXPRESS entities in the DEX schema

The following list of entities have been obtained by their usage within the Templates used in this DEX. The Templates used are listed in the Templates section.

Table List of entities

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