[LIP] Web application design tools

This is a general survey/opinion-call kind of thing. :) I have been 
trying to look for this for a while now. What will people recommend as a 
modelling method for web applications?

The modelling method should:
- Help clients understand the design of the website/app.
- Document the process flow for the programmers
- Should document details even of invisible backend scripts which dont 
have a place in the sitemap
- Should be detailed enough to document the inputs to scripts
- Can even model client side interactions (javascript) as well as server 
side.
- Is somewhat usable with existing tools - like UML design tool

So far, I have only seen a small paper describing an UML extension for 
web applications.

What are the modelling techniques that you folks use before setting out 
to develop a web application for your clients? How do you draw the web 
site map before seeking approval from clients? What tools do you use?

- Sandip

-- 
Sandip Bhattacharya
sandip (at) puroga.com
Puroga Technologies Pvt. Ltd.
Work: http://www.puroga.com        Home: http://www.sandipb.net

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