Enterprise Administration > Implementing Windchill ESI > Implementing Windchill ESI in an ORACLE Applications Environment > Performance Planning > Analyzing Message Numbers and Size > JMS Interface
  
JMS Interface
For the JMS interface, the number of messages per transaction at this interface is the sum of:
ESIResponse (1)
ESIPostResult = Number of business objects or subtransactions in the ESIResponse +1 (n+1)
ESIResultReponse (n+1)
The size of the response message is typically much larger than the other messages, as it contains all of the product structure data for the given transaction.