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An introductory deck to Systems Thinking
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Learning to see... A Systems Thinking Primer (in 3 parts) @patkua
@patkua Architect Developer Leader Coach Life-long learner Author http://tiny.cc/retros http://tiny.cc/twtl
I. Fundamentals II. Archetypes III. In S/W Context
Part I... Fundamentals
Set of agents Agent Agent Agent Agent Agent Agent
Set of agents Agent Interconnected Agent Agent Agent Agent Agent
Set of agents Agent Interconnected Agent In a dynamic state Agent Agent Agent Agent Agent Agent
More than the sum of their parts A product of their interactions
Cause Effect (does not apply to full system)
Synthesis Analysis
The United States consumers more than 20% (7 billion barrels) of the world’s oil supply annually yet only has 2% of the world’s proven oil reserves. What factors will determine when we reach “peak oil”—the point in Fme when the maximum rate of petroleum extracFon is reached, aIer which the rate of oil producFon is expected to enter terminal decline? ? A car travels approximately 26 km per Litre. If petrol costs £4.04/L which one would be closest to how much petrol would cost for a car travelling 2,626km? ? •£44.44 •£109.08 •£118.80 •£408.04 •£333.40 Synthesis Analysis
Systems thinkers seek feedback loops
Agent Agent Agent Agent Agent Agent Agent Agent
Agent Agent Agent Agent Agent Agent Agent Agent
Agent Agent Agent Agent Agent Agent Agent Agent
Agent Agent Agent Agent Agent Agent Agent Agent
Weight Loss (Analysis)
Current Weight Diet Target Weight
Weight Loss (Synthesis)
“Healthy” Food Exercise Junk Food Calories In Calories Out Mood Weight
2 Types of Feedback Loops Amplifying Dampening Self Reinforcing Negative Compounding Stabalising Positive Runaway Balancing Snowballing Self- Escalating maintaining
“Healthy” Food Exercise Junk Food Calories In Calories Out Mood Weight
“The thinking it took to get us into this mess is not the same thinking that is going to get us out of it.” Mental Models
Word association Word association Word association Colour Word association Word association Word association Furniture Word association Flower Word association Word association seconds 60 Word association
Slumber Dream Bed Quiet Nap Pillow Night Blanket Pajamas Snooze
Write down as many words as you can remember, without talking
Slumber Dream Bed Quiet Nap Pillow Night Blanket Pajamas Snooze
Fun Generating Noise Generating
Part II... Archetypes
An Archetype Peter Senge Author of the Fifth Discipline
Action Gap Desired State “warm” Current State “cold” Balancing Loop
Limits to Success Exercise Folding Stuff Reinforcing Loop
Limits to Success Stiffness Thickness Folding Rate Reinforcing Loop