take something like Car, Engine, Tires, Brakes & Steering

If your "Tires" module requires something from any of those other modules, you've got the wrong design for "Tires"; likewise for Engine, Brakes and Steering. Obviously, a "Car" object needs instances of the other four objects, but there is a limit to how "intimate" the Car should be regarding the internals of the others. Really good design means knowing how to maintain a modicum of simplicity, both in the individual pieces and in how they are assembled.

In reply to Re^3: So much interconnectedness - good or bad? by graff
in thread So much interconnectedness - good or bad? by kiat

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