Liang's Vision » Software Design http://www.zhang-liang.com 如切如磋，如琢如磨 Mon, 01 Aug 2011 01:14:13 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 Digest:The Dependency Inversion Principle http://www.zhang-liang.com/articles/31 http://www.zhang-liang.com/articles/31#comments Thu, 13 Nov 2008 09:04:00 +0000 Liang Zhang http://www.zhang-liang.com/?p=31 1. High level modules should NOT depend upon low level modules. Both should depend upon ABSTRACTIONS.
2. Abstractions should NOT depend upon details. Details should depend upon abstractions.

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