"XFDL incorporates the W3C XML Signatures standard, so widelyavailable industry standard tools are available from multiple vendorsfor validating the security of digital signatures in XFDL documents. Inaddition to the Apache XML Security implementation, it is notable thatJava itself now natively contains support for XML Signatures (JSR 105).
These standards mean that the entire server-side lifecycle of theLotus Form can be achieved without being locked into using anyparticular vendor's API. Any application server, any portal server, anyserver-side environment that can receive HTTP POSTs and process XML inthe POST data can be used in combination with Lotus Forms.
And if you ever hear a vendor try to play up high availability of aclient-side browser plugin for processing their favorite file format,ask them "Plugin?? What plugin??" With Lotus Forms, you don't need abrowser plugin at all because the Lotus Forms Web Form Server convertsthe XFDL into dynamic HTML that can be processed directly by thebrowser with no plugins at all. Best of all, when the user finishesinteracting with the Lotus Form, the resulting XFDL document isdelivered to the application server endpoint, where it can be processedas XML using the standard APIs."
Yet another example of Open Standards at its best...