If the data types being passed in a web service are different from those specified in the http://www.w3.org/2001/XMLSchema, the new data types must be defined in a schema and included in the interface wsdl file, either directly in the types section or as an imported schema.

Also, a mapping specification needs to be created to define the mapping from schema type to VA Smalltalk classes.

This example uses already generated map and schema files included as sample files with the product.