Data Transformation Engine Type Tree Importers Reference Guide
Chapter 2 - Using the Importer Wizard  XML Schema Importer 
Type Tree Importers Reference Guide 
37 
XML Schema Element  Type Tree 
Element 
Description 
union  choice  Union of simple types. 
 memberTypes  item type  Union member types. 
unique*  N/A  See the field element. 
* The XML Schema Element is indirectly supported by the external validator. 
Simple Data Types to Type Tree Item Subclass Mapping 
The following tables show how simple XML schema data types are mapped to type 
tree item subclasses. If the XML schema type is supported by the external 
validator only (types marked with *), it means that the XML Schema Importer 
does not support the actual presentation and that the XML Schema type is 
mapped as a plain text item. 
Note: All XML Schema Types in the following table that are marked with an * are 
supported by the external validator. 
XML Schema Type  Type Tree Item 
Subclass 
Presentation  Description 
string Text    
boolean  Text    Restricted to the values: 
“0”, “1”, “true” or “false” 
decimal Number Decimal  
float  Number  Decimal   
double Number Decimal  
duration*  Text    Format is: 
PnYnMnDTnHnMnS 
dateTime  Date & Time    Custom date/time format: 
{CCYY-MM-DD} 
T{HH24:MM:SS[.0-6]} 
Time zones are not 
supported.  
time  Date & Time    Custom time format: 
{HH24:MM:SS[.0-6]} 
Time zones are not 
supported. 










