Tier Vs Layer

Question

What is the difference between n-tier & layer architecture?

Sanjeeb Lenka · Answer

Hi this is done by some address reference and some service. example: in your college and in office you are developing application in one system and your database server is on other system. they are communicating using connection string. here 2 physical system so its 2 tier. like this you can separate your all layers . for this you can use webservice wcf etc... http://blog.simcrest.com/what-is-3-tier-architecture-and-why-do-you-need-it/

Sujit Sahoo · Answer

Dear Sanjeeb As u told in tier the components are physically separated into multiple machines ok I am agree then how they are communicating with each other

Sanjeeb Lenka · Answer

Difference between tier and layer It is a confusing question for beginners. A few think that both are the same. But they are not the same. Tier represents multiple hardware boxes. In other words the components are physically separated into multiple machines. But in the case of layers all components are in the same system.