D3PD::ID3PD Node1 D3PD::ID3PD + capture() + clear() + redim() + addMetadata() + addMetadata() Node2 D3PD::IAddVariable + ~IAddVariable() + addVariable() + addVariable() + addDimensionedVariable() + addDimensionedVariable() + addVariable() + addDimensionedVariable() Node2->Node1