Process in which information about the past or the present influences the same phenomenon in the present or future; it occurs when outputs of a system are routed back as inputs as part of a chain of cause-and-effect that forms a circuit or loop.
Feedback loops are fundamental to systems thinking. They represent the cause-and-effect relationships within a system and help us understand how changes in one part of the system can affect other parts. There are two types of feedback loops: reinforcing and balancing.
Reinforcing feedback loops, also known as positive feedback loops, are cycles that result in the amplification or growth of a system's output. In other words, an increase in a variable leads to further increases, or a decrease leads to further decreases. These loops are often responsible for exponential growth or decline within a system.
Balancing feedback loops, also known as negative feedback loops, work to bring a system back to a desired state or equilibrium. They counteract changes in a system, working to stabilize it. These loops are often responsible for maintaining stability within a system.
Systems archetypes are common patterns of behavior that recur in different systems across various fields. Understanding these archetypes can help us predict system behavior and design interventions to improve system performance. Here are a few common systems archetypes:
This archetype describes a situation where growth is exponential at first but eventually slows down due to a limiting factor. The limiting factor often goes unnoticed until it significantly hampers growth.
This archetype occurs when a system relies on symptomatic solutions instead of addressing the fundamental problem. While the symptomatic solution provides immediate relief, it often exacerbates the fundamental problem over time.
This archetype describes a situation where multiple actors independently act in their self-interest and deplete a shared resource, to the detriment of all.
Understanding feedback loops and systems archetypes is crucial for effective systems thinking. They provide insights into the dynamics of a system and help us predict and influence system behavior. By mastering these concepts, you can better understand the complex systems within your organization and make more informed decisions.