code: public boolean isMultiSource()
  	{
  		// "If the value is set to 1, this is a logical source with multiple source files for different data types."
  		// "Note: If the MultiSource.DWD attribute is set to 1, only "Filename" is allowed (see 5.2.2.1)."
  		final String value = element.getAttributeValue("MultiSource.DWD");
  
  		if (value == null)
  			return false;
  		else
  			return (Integer.parseInt(value) == 1);
  	}
docs: Determines whether this Source is MultiSource (multiple source files for different data types). According to the Carbon
  API:
  <pre>Note: If the MultiSource.DWD attribute is set to 1, only "Filename" is allowed (see 5.2.2.1).</pre>
  
  @return