n-tier architecture approach asp.net web application clearing confusion

Question

Well i want to know how many architecture approaches we can use in asp.net web application. i was asked about it. i told him that i use a appcode for dal and bal and the presentation layer. but he was not convince. basically i want to ask what web application architecture an asp.net web application guru would use keeping in mind the different metrics ( i am talking minus web services or any SOA thing)

Answer 1

Classic 2 tiers app

Is the one you described: You have the client (the browser) connecting to the server (can be configured as several servers) running an ASP app with your AppCode classes acceding the database in the local network (or same machine)

n-tiers app

You can use WCF to delived n-tiers app where the client connect to the server and the server connect to WCF services running on the same server or in several other servers

Note: This is the short story and the naming is subject to debate.