Necessary and Sufficient Conditions
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Hvad er de 5 Whys
af Nathanael Okhuysen
Når noget går galt, især i en stor organisation, kan der være et instinkt til at pege fingre og skifte skyld. Dette er nok ikke den bedste måde at forhindre, at problemet opstår i fremtiden. Sakichi Toyoda, grundlæggeren af Toyota Motor Company, udviklede "5 Whys" -processen, en form for grundårsagsanalyse, til at identificere og løse problemer, der opstod i virksomheden. Det er siden blevet bredt vedtaget som en del af Lean Manufacturing, Kaizen og Six Sigma-metoden.
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Storyboard Beskrivelse
causation - cause and effect - Root Cause analysis
Storyboard Tekst
- Neither Necessary, nor Sufficient
- HELLO!
- Sufficient, but not Necessary
- Being human means you can talk. (Some birds can speak, and some humans cannot)
- Necessary, but not Sufficient
- Causation
- The sidewalk is wet because it's raining. (The sidewalk could get wet from some other cause, a hose, for instance.)
- Necessary and Sufficient
- You have to be 30 years old to serve as a US Senator. (Being 30 is not enough to make you a senator though.)
- Lighting causes thunder. (Thunder cannot be caused by anything other than lightning.)
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