Sequence of web.config in sharepoint

Hello,

Can you pls elaborate the need of cutomization in web.config and requirement ..May be these links will help you

http://msdn.microsoft.com/en-us/library/ms460914(v=office.14).aspx[^]

http://social.msdn.microsoft.com/Forums/en/sharepointdevelopment/thread/8d0b5934-c6cd-4e6c-ab1f-1b5b056fb6fe

http://ruudheemskerk.net/archive/2009/10/14/the-order-of-spwebconfigmodification.aspx

All the Best:)pls write back if you have any other questions