This Simple Data Type defines a String with no leading or trailing whitespace, where whitespace means the Unicode characters defined as whitespace (“WSpace=Y”, “WS”) in the Unicode database.

Where a TrimmedString is specified as input argument to a method and the incoming string contains leading or trailing whitespace, the server is entitled to react with an error (Bad_TypeMismatch) or – preferably – silently trim the string internally before processing it.