The magic ring: systems thinking approach to control systems

摘要

Systems are everywhere. You wouldn't be reading this without networks of interlocking systems to enable it, from the cell to the eye to the computer to society. Some systems are simple enough, and some involve many "moving parts" at many levels with complex networks of feedback and control. In the first chapter of this book, the author says that he is convinced that "intelligence depends on the ability to construct coherent and sensible models." Many times, these models are unstated and unexamined, but better understanding of the models usually depends on stating them and describing them in as much detail as we can manage.