Jeffrey C. Schlimmer. <a href="http://www.w3.org/TR/2002/WD-ws-desc-reqs-20021028"><cite>Web Services Description Requirements.</cite></a> 28 October 2002. W3C Working Draft. (Work in progress.) URL: <a href="http://www.w3.org/TR/2002/WD-ws-desc-reqs-20021028">http://www.w3.org/TR/2002/WD-ws-desc-reqs-20021028</a>