The standard defines specific meanings for different types of feedback:
Outside the library, two strangers argued in a plaza paved with pictograms. One wanted to redesign the danger sign to be more modern; the other insisted tradition kept people safe. The debate was loud until Mara noticed a small, overlooked symbol etched on the library floor: a tiny circle with a line through it. The child took Mara's hand and touched it. Suddenly the plaza hushed. The symbol's meaning — "not connected," "no reference" — unfolded into a broader truth: standards are not only rules; they are shared promises that let strangers work together without words. iec 60073 pdf
Covers physical feedback, such as vibration or specific button shapes, to assist operators in identifying controls without looking. Standardization of "Start" and "Stop": The standard defines specific meanings for different types
: Quickly find specific color codes or signal requirements using the SAI Global Store or IEC Webstore. The child took Mara's hand and touched it
A coffee stain at the corner caught her eye. Beneath it, a penciled note: "For those who listen." Mara smiled and took the binder home.