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<transformation id="MergeSimpleWithQualityAndOutputFlags">
   <merge>
      <simple>
         <inputVariable>
            <variableId>inputA</variableId>
            <overrulingSourceFlag>completed</overrulingSourceFlag>
         </inputVariable>
         <inputVariable>
            <variableId>inputB</variableId>
            <overrulingQualityFlag>reliable</overrulingQualityFlag>
         </inputVariable>
         <outputVariable>
            <variableId>output</variableId>
         </outputVariable>
      </simple>
   </merge>
</transformation>

Reverse merge order

It is possible to reverse the order of the merge by using a boolean location attribute.

An example is given below:

	<transformation id="MAP">
		<merge>
			<simple>
				<inputVariable>
					<variableId>ADAM4_MAP_6</variableId>
				</inputVariable>
				<inputVariable>
					<variableId>ADAM4_MAPX_6</variableId>
				</inputVariable>
				<reverseOrderAttributeId>attributeId</reverseOrderAttributeId>
				<outputVariable>
					<variableId>ADAM4_MAP_6_MAP</variableId>
				</outputVariable>
			</simple>
		</merge>
	</transformation>

The This option is usually used in combination with location attribute modifiers. The default value is then usually set to false, which means that a regular merge will be done.

By applying a location attribute modifier to th eit is possible to reverse the merge order.