Web Processing Service (WPS) 1.0 Tutorial

"Hands-on experience on OGC Web Processing Services using 52north web processing framework"
Rob Lemmens, Theodor Foerster, Barend Köbben International Institute for Geo-Information Science and Earth Observation Enschede, the Netherlands. AGILE Conference, 2007.
https://52north.org/twiki/pub/Processing/52nUdigWPSClient/52n_WPS_hands-on_tutorial.pdf