3-Layered implies a division of responsibilities in logical components whereas in 3-Tier we privilege a physical division of activities. Take a look at http://blogs.msdn.com/diegumzone/archive/2006/10/09/3_2D00_Tier_2C00_-3_2D00_Layer_2C00_-MVC_3A00_-a-Trio-of-Famous-Trios.aspx
↧
