Principle
4. Asymmetry
a. Replace a symmetrical form with an asymmetrical form of
the object
b. If an object is already asymmetrical, increase the degree of asymmetry
- Principle Description: Asymmetry involves transitioning from isotropic to anisotropic or visa versa. Isotropic means symmetrical regardless of measurement direction or object orientation. Anisotropic means asymmetrical, or different depending on the object’s orientation and/or the direction in which it is measured.
- Hints on Usage: Obviously, asymmetry may be applied to a physical geometry. Less obviously, asymmetry can be applied to any interaction.
- Start by assessing the reason why symmetry is part of the current system design. Many times it is symmetrical because “it has always been done that way” whether it is most efficient or not. For example, a compass is a handy, common tool historically used for drawing circles. So handy is the compass that many parts are drawn round because it is easier than drawing it any other way. If a part is too heavy, however, its shape can be changed to eliminate excess weight by shaving off parts that do not add value.
- The Principle of Asymmetry may enable a reduction in the amount of material used, reduce overall weight, support more efficient material flow, change balance, support loads more effectively, ensure proper assembly, detect and orient parts, sort parts, etc.
Comment: Many engineers and scientists are unaware that
they have an unconscious bias to creating symmetrical designs and solutions.
Watch for, and manage, this bias pattern if you find it in your thinking.