Part of my difficulty reading large code bases is there's often no particularly good entry point to start from. Towards the end of my time in OO languages I was

Part of my difficulty reading large code bases is there's often no particularly good entry point to start from. Towards the end of my time in OO languages I was struck by Reenskaug and Coplien's DCI [1] - many people just don't model a system's use cases as first class concepts. The most important part of a system - what it actually does! - doesn't get explicitly mentioned in a lot of people's code. [1] http://en.wikipedia.org/wiki/Data,_context_and_interaction http://en.wikipedia.org/wiki/Data,_context_and_interaction