<http://schema.org/articleBody>
"This sounds like the object oriented concept of Model-View-Controller. Model is the data and as many business rules as possible encapsulated with the data. E.g. only accept a value of 'A' or 'B' for a table's field else send a message (or throw an exceptio..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://archive.midrange.com/midrange-l/200909/msg00347.html>