请大家帮忙

另外以下是我J2EE web Programming 角色的理解，望大家指点
T.1 Front-end coding 　 　           
           jsp,servlet,JavaBeans,JavaScript,DHTML,Tomcat,T.2 Front-end design 　 　 　  　
           MVC, struts,JSP Taglibs,XML,Web service
 　 
T.3 Back-end development 　 　 　 
           ---T.4 Database development 　
           jdbc,SQL,Trasaction
 　 　 　 　 　 　 
T.5 Database design 　 　 　　 　 　 　 　 
           trigger,proceduce,OO
         
T.6 Database admin 　
           ----
 　 　 　 　 　 　 　 　 
T.7 Object-oriented development 　 　 
           UML,some design patternsT.8 Object-oriented design 　 　 　 　 　 　 　 　 　  
           Design Pattern,UML,refactoring