An XML document must be well-formed, and in most cases should be valid (conform to a specified document model) as well.
If you find yourself using this service frequently, I suggest you download RXP or LT-XML 2 and use it locally.
You can verify any signed XML document in this demo.
The reason is that XML software should be small, fast, and compatible.
HTML browsers are allowed to display HTML documents with errors (like missing end tags). A "well formed" XML document is not the same as a "valid" XML document. In addition, it must conform to a document type definition.
Validates the XML string/file against the specified XSD string/file.
XSD files are "XML Schemas" that describe the structure of a XML document.The checker uses the RXP parser, written by Richard Tobin.RXP is part of the LT-XML 2 system, which is available from the Language Technology Group at the University of Edinburgh.The ADSS Verification Server can support an unlimited number of CAs each with their own validation policy.As a part of our commitment to support the standardization effort of CDISC(Clinical Data Interchange Standards Consortium), we are glad to share with the clinical study community the ODM(Operational Data Model) and validator which were initially developed for our internal use.The Ascertia ADSS demo Verification Server has a list of Certificate Authorities (CAs) trusted to issue certificates to end-users as listed here.