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`!Shape coding`! is a method of `F33f`_`[design`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=Design]`_`f of a control that allows the control's function to be signified by the shape of the control. It was used successfully by `F33f`_`[Alphonse Chapanis`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=Alphonse_Chapanis]`_`f on airplane controls to improve `F33f`_`[aviation safety`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=Aviation_safety]`_`f.

>>External links

• A paper on the design of controls (pdf file)

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