Places to Intervene in a System
http://www.developerdotstar.com/mag/articles/places_intervene_system.html

Meadows, Donella H. with Don Gray
developer.star
2005

Abstract:

The late systems thinking expert Donella Meadows explores 'intervention points' within complex systems where we can seek leverage to affect change within those systems. The essay originally appeared in Whole Earth magazine in 1997 and has been recontextualized in this software development publication.