Measuring "work" efforts and rates are a daunting task, especially in team building, business development,and cooperative efforts. By using conversion formulas, work done at a constant rate by one person and at a different constant rate by another, can be converted to their respective unit rates and then compared directly. Bottom line, for fair comparison, unit conversion is necessary.
"Work" can include certain job complexities such as jobs completed within a certain temporal frame, frequency, and/or rate and measured, monitored, tracked by such.
MINC Corporation Research Institute work diligently around the clock to develop solution based systems for problem solving using unit rates and conversions.