The soul is dyed the color of its thoughts. Think only on those things that are in line with your principles and can bear the light of day. The content of your character is your choice. Day by day, what you do is who you become. Your integrity is your destiny - it is the light that guides your way. - Heraclitus
I'll add Dependency *Inversion* to Ilja's suggestion. HERE is something I did for my team because it is important to "plug in" new products and user groups for our system without changing the core. See if you spot Dependency *Injection* in the testing section. I didn't call it out by name because I hadn't heard of it yet when I made this.
If this kind of research & conversation grabs your interest, scroll on down to the OO, UML, etc. forum. We love this stuff down there. [ June 07, 2005: Message edited by: Stan James ]
A good question is never answered. It is not a bolt to be tightened into place but a seed to be planted and to bear more seed toward the hope of greening the landscape of the idea. John Ciardi