validating parsers
defined, 744
Xerces, 746, 761
validation, 91–94
digital signatures, 638, 645
handlers, 562
JAXB, 566–567
XML Schema, 759
Validator interface, 566–567
vendor dependence, reduced, 30
vendor tool tasks, 168
verification, 91–94
Verisign XML Signature SDK, 639