XML wire format - Relationship to the logical model

The XML wire format generally respects all of the setting in the logical model, but shares certain restrictions in common with the other physical formats. These restrictions are documented in MRM model restrictions.

The XML wire format ignores default and fixed values on elements and attributes. If validation is enabled in WebSphere Business Integration Message Broker, this can lead to unexpected validation errors for missing elements, even though they have default or fixed values.