This is nothing more, or less, than the Answer to the Ultimate Question of Life, The Universe, and Everything - and no it isn't 42.
It is about seeing things holistically and understanding and treating the whole system, rather than just parts of it. And it applies to social systems, such as businesses, or politics, as well as engineered systems.
Most people tend to be linear thinkers and link cause and effect. In fact we are trained to in Root Cause Analysis. However this can lead to problems, because it has not been realised that what we thought was a very simple system is in fact part of a bigger, more complex system, that may have feedback loops and non-linear responses, leading to side effects and unintended consequences.
Thus systems thinking is a way of trying to predict and avoid unintended consequences.
It has several roots, but it came to most people's attention with the publication of the book 'The Fifth Discipline' by Peter Senge.
In it he describes five disciplines that are necessary in order to be a "learning organization":
He also introduced many people to new tools, such as Causal Loop Diagrams, as a way of showing feedback and reinforcing and balancing loops.
A related discipline is System Dynamics, which is an approach to understanding the nonlinear behaviour of complex systems (especially non-linear, dynamic systems) over time using stocks and flows, internal feedback loops and time delays. It was invented during the mid-1950s by Professor Jay Forrester of the Massachusetts Institute of Technology. His initial goal was to determine how his background in science and engineering could be brought to bear, in some useful way, on the core issues that determine the success or failure of corporations. This led him to develop ways of modelling the corporation as a dynamic system.
Systems Thinking and System Dynamics are powerful approaches that we will be using more of in the future, so watch this space.
In the meantime just think about how many times politicians of any persuasion decide to do something that does not work because they are driven by dogma. We think that before any MP is allowed to take his seat in parliament he should pass a course in Systems Thinking.
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