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Ok, a bit more info....
EPC reads from 100+ geographically separate readers connected by WAN to the central database be asynchronous and users at these locations have access to the OneWorld application via a CITRIX farm.The read EPC can be sent and stored on the database by the reader software with no problem but we want to avoid continuously scanning the database for changes as >50% of the time there will be no change.
When we have previously relied upon the native database change notification functionality it has let us down i.e. failed.
By direct user request we can retrieve the stored EPC for use by the JDE application but this isn't automation!
Ideally the database would prompt the JDE application when a new EPC record was passed to it by a reader and cause the application to initiate its own functionality.
In the meantime I'll go check up on SES and event engines!