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three-tier Last modified: Thursday, December 06, 2001  A special type of client/server architecture consisting of three well-defined and separate processes, each running on a different platform: 1. The user interface, which runs on the user's computer (the client). 2. The functional modules that actually process data. This middle tier runs on a server and is often called the application server. 3. A database management system (DBMS) that stores the data required by the middle tier. This tier runs on a second server called the database server. The three-tier design has many advantages over traditional two-tier or single-tier designs, the chief ones being: The added modularity makes it easier to modify or replace one tier without affecting the other tiers. Separating the application functions from the database functions makes it easier to implement load balancing.   Client/Server Software Architectures - An Overview Provides a summary of some common client/server architectures and also summarizes mainframe and file sharing architectures. Links to more detailed descriptions for many of the individual architectures are provided throughout the document Crossware and 3-tier Applications Explains why 3-tier applications are a desirable evolution for client/server development in the enterprise. Related Categories Client/Server Computing Programming Related Terms application server client/server architecture load balancing middleware TP monitor two-tier Shopping three tier Products Compare Products,Prices and Stores Shop by Category: Lighting 4540 Store Offers Office Supplies 50 Store Offers Garden 99 Store Offers Sport and Outdoor 317 Store Offers Search: WebMediaBrands Corporate Info Legal Notices, Licensing, Permissions, Privacy Policy. Advertise | Newsletters | Shopping | E-mail Offers | Freelance Jobs Solutions Whitepapers and eBooks Articles: Build a More Agile Business with IBM IBM Articles: Virtualization Delivers a Dynamic Infrastructure Articles: IBM Offers Enhanced Measurement and Management for Energy Usage Articles: IBM Helps Transformation to an Information-Based Enterprise Microsoft Articles: Visual Studio 2010 Adobe Article: Adobe Helps PHP Developers Create Rich Internet Applications Adobe Article: Java Developers Finding a Home at Adobe Flex IBM Articles: A Smarter Business Needs Smarter Technology Intel Xeon Processor Increases Server Efficiency and Capabilities Intel Tech Brief: Automated Energy Efficiency for the Intelligent Enterprise Oracle Whitepapers - Innovation for IT Leaders Avaya Article: Communication-Enabled Mashups--Empowering Both Business Owners and IT Internet.com eBook: IT Manager's Guide to Social Networking Internet.com eBook: Get Ready for Windows 7 Microsoft Article: Expression Web 3--New Features for PHP Developers Whitepapers: Manage Your Business Infrastracture with IBM Whitepaper: Maximize Your Storage Investment with HP Internet.com eBook: Becoming a Better Project Manager Microsoft Article: Stress Free and Efficient Designer/Developer Collaboration MORE WHITEPAPERS, EBOOKS, AND ARTICLES Webcasts SAP Webcast: Crystal Reports Server--Do More. Spend Less. Webcast: Connecting PHP to Microsoft Technologies Video: Microsoft Partner Program Benefits Video: Windows Azure Debugging Tips SAP BusinessObjects Webcast: Unlock the Power of Reporting with Crystal Reports IBM Webcast: Speed Business Innovation with Reduced Cost and Risk Video: Deploy Applications on Windows Azure MORE WEBCASTS, PODCASTS, AND VIDEOS Downloads and eKits Download: Microsoft Visual Studio 2010 Beta 2 Downloads & Free Trials: Microsoft's New Efficiency Resource Center Get the Windows 7 SDK Free Trial: Red Gate SQL Backup Pro 6 Iron Speed Designer Application Generator MORE DOWNLOADS, EKITS, AND FREE TRIALS Tutorials and Demos Internet.com Hot List: Get the Inside Scoop on the Hottest IT and Developer Products All About Botnets MORE TUTORIALS, DEMOS AND STEP-BY-STEP GUIDES