Thanks.

Tulsi

 Take a look at this. This is the very best article I have ever read about this topic.

 http://imar.spaanjaars.com/QuickDocId.aspx?quickdoc=416

 I am glad to hear your feedback

Thanks for the article link.  

I've briefly read through some pieces of the article and it definitely seems very like a very good description.  However, it seems like a lot of added work which I can imagine would probably make sense for larger applications.  But what about smaller applications?  Do you think all the added work is justified?  When does it make sense to incorporate n-tiered design in an application?

 Thanks.

Tulsi

 Well this is not easy to say. So if you have just a couple of pages which are displaying some content with few code behind you can do it without BLL and DAL.

You should use n-tier-architecture if your code does change alot. Or you make a lot of enhancements in your projects. So n-tier-architecture improves your flexibility and changeability of your website. 

And think about what is if your page will grow?

So keep in mind if you change or enhance a lot do it with n-tier