changing order of elements

I have 2 interfaces and mapping. I need to change the order of XML elements in resulted XML.

I have changed the order in DataType (for second XML) but it doesn't work.

example:

Interface 1

<data>
  <name></name>
  <title></title>
</data> 

Interface 2

<data2>
  <name2></name2>
  <title2></title2>
</data2> 

The result is

<data2>
  <title2></title2>
  <name2></name2>
</data2> 

How to change the order?