Download - Systems Thinking
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systems thinking
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cyberneticsthinking about systems primarily as
dynamic patterns of interaction and feedback
(rather than as static abstractions)
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your wife is very
beautiful
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Just calling it "feedback" doesn't mean that it has actually fed back.
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The amount of feedback built into living organisms differs by many orders of magnitude from the amount we build into man-made systems.John Gall
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There is not one living creature that lacks that integrated, total unification through feedback. John Gall
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Compared to a frog or a salamander, our biggest manmade systems seem like simple wind-up toys.John Gall
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Ignoring feedback merely means that the system will eventually experience a massive unpleasant surprise rather than a small unpleasant surprise.John Gall
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It may look like a crisis, but it's only the end of an illusion.
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tinitus
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danger
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change
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Blood Sugar
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is
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is
Hyperglycemia
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is
sensespancreas
Hyperglycemia
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is
sensespancreas causes
insulin
Hyperglycemia
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is
sensespancreas causes
insulin
senses
liver &muscles
Hyperglycemia
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is
sensespancreas causes
insulin
senses
liver &muscles
causes glycogen
Hyperglycemia
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is
sensespancreas causes
insulin
senses
liver &muscles
causes glycogen
Hyperglycemia
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is
sensespancreas causes
insulin
senses
liver &muscles
causes glycogen
Hypoglycemia
Hyperglycemia
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is
sensespancreas causes
insulin
senses
liver &muscles
causes glycogen
Hypoglycemia
Hyperglycemia
pancreas
senses
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is
sensespancreas causes
insulin
senses
liver &muscles
causes glycogen
Hypoglycemia
Hyperglycemia
pancreas
senses
glucagoncauses
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is
sensespancreas causes
insulin
senses
liver &muscles
causes glycogen
Hypoglycemia
Hyperglycemia
pancreas
senses
glucagoncauses
senses
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is
sensespancreas causes
insulin
senses
liver &muscles
causes glycogen
Hypoglycemia
Hyperglycemia
pancreas
senses
glucagoncauses
sensescauses
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Systems tend to oppose their own proper function.
Henri Louis Le Chatelier
Le Chatelier's Principle
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All change can be understood as the effort to maintain some constancy...
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All change can be understood as the effort to maintain some constancy......and all constancy as maintained through change.
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The battle over food and territory between two species is only one half of the story.
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The battle over food and territory between two species is only one half of the story. ...the battle is a means or process of generating, maintaining, and stabilizing an ecosystem.Gregory BatesonSteps to an Ecology of Mind (I think)
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evolution
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evolution is always
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evolution is always
co-evolutionJohn Gall
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What is involved is not simply survival
of the fittest
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What is involved is not simply survival
of the fittestbut survival of the
fitting-in-est.John Gall
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break;
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slack
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Queues amplify variability. Moving from 75 to 95% utilization increases variability by 25 times.
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local optimization=~=
global pessimization
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the whole is greater than the sum of the
parts
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Successful change can only come in the context of a clear understanding of what may never change, what the organization stands for. ...
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If nothing is declared unchangeable, then the organization will resist all change. When there is no defining vision, the only way the organization can define itself is its stasis.
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Every effect has a cause...
The Causation Fallacy
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Every effect has a cause... and we can tell which is which.
The Causation Fallacy
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defects latenesscause effect
====
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defectslateness
cause effect====
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The Law of Unintended Consequences
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Failure demand
"Demand caused by a failure to do something or do something right for the customer"
John Seddon
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Failure demand in software
?