Using the papiNet schemas for implementaion is free of charge.

To use the papiNet xml files, your IT infrastucture must have

• capability to send and receive xml files over a telecommunication newtork
•  Software to handle information contained in the xml files so that it can be made available in the IT systems implemented to support your business processes

More information about xml can be found here

o   https://en.wikipedia.org/wiki/XML

o   http://www.w3schools.com/xml/