Diversity, deviation, and variation are three words we commonly used. Most people would think they are synonymous. They are not. Of the three words, one word brings fear to the manufacturing and service industries. Which word when apply to your processes causes the biggest headache? Look at the following three diagrams and pick your choice. To the readers from engineering discipline, the choice is obvious, others might need a shift in paradigm.

[Click on your choice to find the answer]