This is a development design technique that separates the logical components of the application. The basic N-Tier design is a 3 tiered system. The first tier is the user interface. The second tier is the business objects. The third tier is the data store.

Using this kind of design makes it easy to used different front ends for your user interface. It might be a FoxPro app, or a VB app, or a WEB app.

The front end (user interface) "talks" to the business objects to request data and apply business rules. This tier is usually COM objects written in VFP, VB or any other application that can create COM objects.

The data store is the physical data. Could be SQL Server database, VFP Database, or any of the other data bases.

>What is N Tier?
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>Mohammed