Multi-Tier Model for Infrastructure Computing

The next layer of a three tier architecture is the application layer. Using www.dell.com as an example, after you have looked at all of the system information, spec sheets, etc. and you click "Configure & Price," you begin to interact with an Microsoft^®  Commerce Server running on the middle-tier application server. Choose from the Dell line of versatile PowerEdge^TM  general-purpose servers and PowerVault^TM  storage solutions along with an extremely broad base of hardware, O/S and application support to build the core of your infrastructure.