Tier Pressure and Isolationism

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Chad Z. Hower aka Kudzu

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Cyprus

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Chad Z. Hower, a.k.a. Kudzu
"Programming is an art form that fights back"
www.KudzuWorld.com

Formerly the Regional Developer Adviser (DPE) for Microsoft Middle East and Africa, he was responsible for 85 countries spanning 4 continents and 10 time zones. Now Chad is a Microsoft MVP.

Chad is the chair of several popular open source projects including Indy and Cosmos (C# Open Source Managed Operating System).

Chad is the author of the book Indy in Depth and has contributed to several other books on network communications and general programming.

Chad has lived in Canada, Cyprus, Switzerland, France, Jordan, Russia, Turkey, and the United States. Chad has visited more than 60 countries, visiting most of them several times.

Logical layers within n-tier systems should be designed to interact and be influenced by neighboring layers only. This restriction is often violated which is detrimental to the system. In this article I will discuss why this is common, the consequences, and why we should focus on layer isolationism.

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First Posted	9 Jul 2005
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