How to start to dev a Web Directory System

I am planing to build a simple web dictionary s开发者_运维技巧ystem with Kohana 3.

categories

. website title;
. website URL;
. website logo;
. website description.
. etc.

How to write a professional design specification for my project and is there any good tutorial to start?

Appreciated for reading and the replies.

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The "Kohana Tutorial" pages are pants. Not so much for their content, but for the fact that they have a pretty damn unorganised wordpress blog and finding useful info isn't exactly made easy. What they need is a post/page at learn.kohanaphp.com that lists the most important tutorials, rather than forcing you to wade through the whole blog.

Anyway, rant over, I'd start here:

http://zacklive.com/hello-world-tutorial-for-kohana/15/

Then:

http://learn.kohanaphp.com/2008/03/26/blog-tutorial-1/

http://learn.kohanaphp.com/2008/03/28/blog-tutorial-part-2/

Other articles of interest:

http://www.ninjapenguin.co.uk/blog/2008/06/21/kohana-pagination-tutorial/

http://learn.kohanaphp.com/2008/04/25/using-auto_modeler-to-write-quicker-code/

http://www.ninjapenguin.co.uk/blog/2008/06/29/practical-kohana-hooks-example-phpids/

http://learn.kohanaphp.com/2008/04/14/5-tips-to-help-you-find-something-youre-looking-for-in-kohana/

And, of course, Google.