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Scope: Core (OPC-10000-*) All specs

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OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model

6.3.3.3 Overriding InstanceDeclarations

apply. Any Attribute provided by the overridden InstanceDeclaration has to be provided by the overriding InstanceDeclaration , additional optional Attributes may be added. A subtype shall not override an argument ... which is defined with a concrete DataType. Method arguments defined with an abstract DataType may be overridden . A subtype shall not remove an argument of its supertype's Method InstanceDeclaration