From: dvick@lanier.com (Don Vick)
Subject: Re: Three-Tier Client Server
Date: 1995/05/22
Message-ID: <D8zH5C.DA7@lanier.com>#1/1
sender: Don Vick <dvick@lanier.com>
references: <1995May18.144208.4496@nosc.mil>
organization: Lanier Worldwide, Tucker, GA
newsgroups: comp.databases.oracle


In article <1995May18.144208.4496@nosc.mil>,
Michael P. Vergara <mvergara@sctcorp.com> wrote:
>My boss asked me today about this.  I have never heard of 'Three-Tier
>Client/Server' architecture.  Am I that far out of it?  Can anyone
>shed some light on this topic?
>

Briefly, the three tiers are the database, the application logic, and the 
user interface.  If you build them properly, you can make the 
implementations independent of each other, which gives you the option of 
putting them on one, two, or three platforms.  

Example: database: An Oracle database (tables, indexes, etc)
	 application logic: Oracle constraints, triggers, stored procedures
			    (or write it in some other language if you prefer)
	 user interface: SQL*Forms, or whatever you like (Visual Basic, etc)

--------------------------------------------------------
Donald E. Vick  (dvick@lanier.com, dvick@crl.com)
Voice: (404) 493-2194    Fax: (404) 493-2399