XML used as a Template
WebWisdomDB is accessed via the TESS servlet which processes XML templates allowing general pages to display database contents
XML embedded as part of HTML “Web Page”
URL of Web Page invokes Servlet
e.g. http://witch.npac.syr.edu/servlet/TDLServlet/witch/index.tdl?USID=67
Servlet leaves HTML untouched but calls Java Methods to process XML tags
This Servlet processes <WW_… tags -- others are left for other servers or browser