DataSet and Communication Channel Association
The diagram below provides a very generic overview of the responsibilities that must be implemented by the UA Application:
MessageHandler- represents a selected transport protocol supporting unsolicited data distribution or a middle-ware supporting publication/subscription message exchange communication pattern.
DataSet- represents a preselected collection of process data items transmitted by the
MessageHandleras one whole and information required to bind with the underlying process.
MessageReader- captures functionality necessary to filter out unwanted messages and decode the data according to provided meta-data
MessageWriter- captures functionality necessary to address the message (provide globally unique identifier) and encode the data using provided meta-data
- 1.one to one association between an entity instance derived from
- 2.required addressing information as the
- 3.meta-data information used to encode/decode the process data into the messages