Traceability Foundations
Quantity
How much there is, measured by a device instead of estimated by a person.
What counts as quantity
Weight, temperature, humidity and dimensions are all quantity, and so is a count. A count is the one people are most tempted to do by hand.
Measuring in one pass
1
Pass over the scale
4
Values captured
0
Keystrokes
Why estimation fails
An estimate is a number with no witness. It survives into the ERP and becomes a fact nobody can trace back to anything.