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Layer and Tier

Shaik.Nazeer Ahmed

Joined: Apr 24, 2010
Posts: 1
what is difference between Layer and Tier ?
Deepak Rao
Ranch Hand

Joined: Jan 24, 2012
Posts: 35

Kind of similar, Tier is a physical demarcation and Layer is a logical one.

The concepts of layer and tier are often used interchangeably. However, one fairly common point of view is that there is indeed a difference, and that a layer is a logical structuring mechanism for the elements that make up the software solution, while a tier is a physical structuring mechanism for the system infrastructure


Campbell Ritchie

Joined: Oct 13, 2005
Posts: 44563
And welcome to the Ranch
Kiran Yadav
Ranch Hand

Joined: Nov 02, 2011
Posts: 35

Yes, layer and tier are often used interchangeably, however in bussiness language perspective tier indicates the layered structure.
I agree. Here's the link:
subject: Layer and Tier
jQuery in Action, 3rd edition