Every Payroll XML file must comply with the specifications
in the appropriate Schema file. The fundamental
schema is PRL-GML20110324pxs.xsd.
We will give an in-depth example of creating valid Payroll XML files
from given sample data. The example will take a fairly simple
case represented by a traditional US Department of Labor WH-347 form
and build a valid Payroll XML file from it. This example will spend
a lot of time explaining the meaning of the rules in the schema.