"Knowledge in the world" -- information that is embedded, encoded or implicitly resides in the components of a task. Here the shape of the dipsticks communicates their purpose. The yellow disptick is shaped like an "O" and is used to check the Oil level. The orange dipstick is shaped like a "T" and is used to check ... you guessed it ... Transmission fluid level. It is ironic that this design is very language-specific but comes on a Japanese brand.


Mistake-proofing category: Mistake prevention in the work environment
Setting function: information enhancement
Regulatory function: Sensory Alert
Source: Off-the-shelf


Secondary Problems (side effects, weakness or concerns) with this example:


Sources of Supply:

See also:

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