we are tryin to develop a new web app but this one could be used from another web app so we are trying to decide on a design. Lets just forget abt the authetication part. we came up with 2 designs 1. create jsp include pages and have a wrapper page. so in this case both the web apps will share the include jsp pages but the wrapper pages will be different in the web apps 2. to create an xml content instead of html in the new web app and do transformation or may be use JSTL tags to do transformation (havent looked atthat yet!!). is there any other way or another technology that can do this.?? whts the industry standard for doing something like this??