In the book "Thinking in Systems" by Donella H. Meadows, defines a system as an interconnected set of elements that is coherently organized in a way that achieves something. A system is more than the sum of its parts.
A system consists of three main parts:
- Elements: These are the components or parts which can't be broken down into further parts within the context of the system.
- Interconnections: These are the relationships that hold the elements together. They include physical flows, as well as flows of information or influence.
- Function or Purpose: This is the behavior the system exhibits or the goals it is trying to accomplish. This is often not written or spoken anywhere but is a consequence of the interplay between the system's elements and their interconnections.
Examples of systems in daily life:
- Wardrobe: The elements are pieces of clothing. Interactions involve the flow of clothes - choosing, wearing, washing, and returning items. The function is to provide appropriate attire. The feedback loop involves maintaining order and finding items easily. Understanding this system optimizes wardrobe management.
- Nutrition: The elements are meals. Interactions involve the process of buying, preparing, and consuming food. The function is to nourish and provide energy. The feedback loop can be the impact on health and wellness. Understanding this system can lead to healthier food choices and improved well-being.