Webopedia on Google+Webopedia on TwitterWebopedia on FacebookTech Bytes Blog
Main » TERM » T »

three-tier

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.






  • TECH RESOURCES FROM OUR PARTNERS
    DID YOU KNOW?
    Internet of Things Shaping IT's Future

    To make the IoT both work and pay off, IT is juggling upgrading and building app-centric networks, mapping out new data center architectures and... Read More »

    What You Don't Read Can Hurt You

    Does this sound familiar? An online service promises to help your small business cut costs, increase productivity, make your coffee and walk your... Read More »

    Who's Moving Ahead in Cloud Computing?

    The future remains, well, cloudy. But either way: Amazon, look out. Microsoft is gaining fast. Read More »

    QUICK REFERENCE
    Webopedia Polls

    The trend for the past two years has been for shoppers to spend more online during the holiday season. How do you typically shop for holiday... Read More »

    How to Create a Desktop Shortcut to a Website

    This Webopedia guide will show you how to create a desktop shortcut to a website using Firefox, Chrome or Internet Explorer (IE). Read More »

    Flash Data Storage Vendor Trends

    Although it is almost impossible to keep up with the pace of ongoing product releases, here are three recent highlights in the flash data storage... Read More »