Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Domain | Definition |
Computing | Three-tier A client-server architecture in which the user interface, functional process logic ("business rules") and data storage and access are developed and maintained as independent modules, most often on separate platforms. Apart from the usual advantages of modular software with well defined interfaces, the three-tier architecture is intended to allow any of the three tiers to be upgraded or replaced independently as requirements or technology change. For example, an upgrade of desktop operating system from Microsoft Windows to Unix would only affect the user interface code. Typically, the user interface runs on a desktop PC or workstation and uses a standard graphical user interface, functional process logic may consist of one or more separate modules running on a workstation or application server, and an RDBMS on a database server or mainframe contains the data storage logic. The middle tier may be multi-tiered itself (in which case the overall architecture is called an "n-tier architecture"). (1998-05-13). Source: The Free On-line Dictionary of Computing. |
Source: compiled by the editor from various references; see credits. | |
(From Wikipedia, the free Encyclopedia)
The three-tier model is considered to be a software architecture and a software design pattern.
Apart from the usual advantages of modular software with well defined interfaces, the three-tier architecture is intended to allow any of the three tiers to be upgraded or replaced independently as requirements or technology change. For example, an upgrade of desktop operating system from Microsoft Windows to Unix would only affect the user interface code.
Typically, the user interface runs on a desktop PC or workstation and uses a standard graphical user interface, functional process logic may consist of one or more separate modules running on a workstation server or application server, and an RDBMS on a database server or mainframe contains the data storage logic. The middle tier may be multi-tiered itself (in which case the overall architecture is called an "n-tier architecture").
It seems similar, although defined in slightly different terms, to the Model-view-controller concept and the pipes and filters concept.
This article (or an earlier version of it) contains material from FOLDOC, used with permission. Update as needed.
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Three-tier (computing)."
Crosswords: THREE-TIER |
| English words defined with "THREE-TIER": tier. (references) |
| Specialty definitions using "THREE-TIER": 3-tier ♦ n-tier. (references) |
| Subject | Topic | Quote |
Business | In the countryside, 70% of the population interacts with a three-tier Rural Health Delivery System. (references) | |
Traditionally, the distribution model is a three-tier system, comprising the wholesaler or the distributor, the dealer and the retailer. (references) | ||
Economic History | Latvia | The 1993 Law on Judicial Power introduced a three-tier court system. (references) |
Eq. Guinea | The Government in 2001 updated the minimum wage and created a three-tier system. (references) | |
Switzerland | The country recently changed from a three-tier system for issuing work permits to a two-tier system. (references) | |
Human Rights | Georgia | The law established a three-tier court system. (references) |
Estonia | The judiciary operates through a three-tier court system: Rural and city courts; district courts; and the State Court (which functions as a supreme court). (references) | |
Political Economy | INDONESIA | Consecutive IMF programs in which Indonesia committed to implement a three-tier tariff structure (zero, five, or ten percent) on all imported products, except motor vehicles and alcoholic beverages, have reinforced the long-term liberalization policy. (references) |
Trade | Indonesia | The long-term liberalization policy has been reinforced by consecutive IMF programs in which Indonesia committed to implement a three-tier tariff structure - 0, 5 or 10 percent - on all imported products except motor vehicles and alcoholic beverages. (references) |
Source: compiled by the editor from ICON Group International, Inc.; see credits. | ||
| "THREE-TIER" is generally used as an adjective (general or positive) -- approximately 95.24% of the time. "THREE-TIER" is used about 21 times out of a sample of 100 million words spoken or written in English. Its rank is based on over 700,000 words used in the English language. Some parts-of-speech are not covered due to the samples used by the British National Corpus. (note: percents less than one-hundredth of one percent have been omitted) |
| Parts of Speech | Percent | Usage per 100 Million Words | Rank in English |
| Adjective (general or positive) | 95.24% | 20 | 78,262 |
| Noun (proper) | 4.76% | 1 | 339,140 |
| Total | 100.00% | 21 | N/A |
Source: compiled by the editor from several corpora; see credits.
| Language | Translations for "THREE-TIER"; alternative meanings/domain in parentheses. | ||||
Chinese | 三一'. (various references) | ||||
Japanese Kanji | 竹 (bamboo, middle of a three-tier ranking system), 松 (highest of a three-tier ranking system, pine tree). (various references) | ||||
Korean | 삼 층. (various references) | ||||
Pig Latin | ee-tierthray | ||||
Scrabble® Enable2K-Verified Anagrams | |
| Words within the letters "e-e-e-h-i-r-r-t-t" | |
-2 letters: retiree, teether. | |
-3 letters: eerier, either, hitter, rehire, retire, ritter, teeter, teethe, terete, terret, territ, tether, tither, triter. | |
-4 letters: eerie, ether, hirer, ither, retie, teeth, their, there, three, titer, tithe, titre, trier, trite. | |
-5 letters: heir, here, hire, rete, rite, teth, thee, thir, tier, tire, tree, tret. | |
| Words containing the letters "e-e-e-h-i-r-r-t-t" | |
+3 letters: tetrahedrite, thereinafter. | |
+4 letters: tetrahedrites, thermometries. | |
+5 letters: heterotrophies, thermoelectric. | |
| Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. | |
| 1. Synonyms 2. Crosswords 3. Quotations: Non-fiction 4. Usage Frequency | 5. Translations: Modern 6. Anagrams 7. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
