How to create a kind of alias in tomcat

[BENTOUHAMI MB Malek \(DCL\)]

Hello,
 
I'd like to connect to my application at
http://10.124.40.29:9090/ORGEWI/PLATFORM/FRENCH/EWICHART/JAVA/L1.html
but users need to connect via http://10.124.40.29:9090/organigramme
how to proceed ?
 
fyi : Calendra / tomcat v4
many applications with context file ORGEWI.xml
 
Tks,
Malek