Data Transformation Engine Type Designer Reference Guide

Chapter 4 - Type Properties Basic Type Properties
XML Indicates an XML document type. When this value is set to
XML and the appropriate DocumentVerification map settings
are in place, the XML document will be validated by an external
program in addition to the standard data validation process.
Refer to the Map Designer Reference Guide for information about using the
Document Verification option.
Where Used
Where Used shows how and where the type is used within other types in the
tree. For example, the Where Used property shows if the type is used as a
delimiter, component, and so on.
In the following example, the type StatePop is used as a component in the type
Stats Output Data.
In the definition of another type, a type may be used as a component, a comment
type, or a syntax object (delimiter, initiator, terminator, or release character).