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

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OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

6.4.2.5.6 MetaDataUpdateTime

corresponding DataSetMetaData is changed and DataSetWriters shall try to negotiate AtLeastOnce or ExactlyOnce delivery guarantees with the broker for any DataSetMetaData sent to ensure metadata is available to readers