Its like this, when you are building a system, usually what is involved is analysis of the existing system right? and during analysis you need to draw models of the existing system and the system you intend to build so you need tools to make the models or diagrams and i gave an example of the Unified Modeling Language UML. Now, I want to know about the kind of modeling language i can use to model a website. i know they are there but not popular. Am asking if anybody knows some and give me some links to white papers or books or something.