You can add an XML Source Qualifier transformation to a mapping by dragging an XML source definition to the Mapping Designer workspace or by manually creating one. When you add an XML source definition to a mapping, you need to connect it to an XML Source Qualifier transformation. The XML Source Qualifier transformation defines the data elements that the Integration Service reads when it executes a session. It determines how the PowerCenter reads the source data. The XML Source Qualifier transformation is an active transformation.
An XML Source Qualifier transformation always has one input or output port for every column in the XML source. When you create an XML Source Qualifier transformation for a source definition, the Designer links each port in the XML source definition to a port in the XML Source Qualifier transformation. You cannot remove or edit any of the links. If you remove an XML source definition from a mapping, the Designer also removes the corresponding XML Source Qualifier transformation. You can link one XML source definition to one XML Source Qualifier transformation
You can link ports of one XML Source Qualifier group to ports of different transformations to form separate data flows. However, you cannot link ports from more than one group in an XML Source Qualifier transformation to ports in the same target transformation.
You can edit some of the properties and add metadata extensions to an XML Source Qualifier transformation.