The Data Map panel is available for certain types of transformations (XSLT and streaming), and lets you transform XML data into tabular data by mapping XML sources to target columns. It displays the hierarchical relationship among the elements in the input XML document with the corresponding data type for each element. The Source column displays the structure of the input XML document, and the Target column the structure of the output table. The output items you specify in the Target column are rendered as columns in the result set when you execute the transformation.

This panel is permanently disabled if you edit the XSLT in the XSLT Panel for XSLT Transformations.