Fable
The accounting office changed the ruler, and only then did the workshop know who had truly finished the work
The South Bank workshop used to look only at month-end revenue. For every table and chair sold, the accountant drew a horizontal line on the wall. The masters all knew their craft, and there weren't many customers, so although this number was crude, at least it let the owner know whether the workshop had a way to survive.
Later the workshop took on long-term orders from city firms. Tables and chairs were no longer sold one by one, but repaired, replaced, delivered, modified and inspected daily. Some people worked fast but reworked a lot, some were slower but got it right the first time, some pushed hard orders to others, and at month's end the revenue still looked good while the floor grew more and more chaotic.
The boss first added a new metric: how many wooden tags each craftsman completed per day. The tag count rose quickly, and everyone began breaking large jobs into small tags, rushing to do what could be done quickly and leaving the troublesome parts for last. The numbers on the wall looked better, but customer complaints did not decrease.
He also had the bookkeeper record work hours. As a result, the craftsmen began proving how busy they were. Some spent a whole day on bad material, and some counted waiting for parts as full work hours. The busyness was recorded in full, but customers still could not get usable tables and chairs.
When a major trading firm returned thirty chairs, the boss realized he had never truly managed delivery. He knew how much he had sold, how much he had made, and how long he had been busy, but he didn't know the first-pass completion rate, rework rate, reasons for delays, time spent waiting for approvals, material waste, or whether customers had accepted the goods.
The new accountant wiped away half the horizontal lines on the wall and re-divided them into several columns: order received, completed, first-pass acceptance, rework, overtime, escalation, cost, and incidents. Every wooden tag had to leave a status from entry to delivery, not just turn into a single revenue entry at month-end.
At first the masters felt these numbers were like surveillance. Two weeks later, they found the benefits were very direct: being slow was not a crime, being stuck waiting for materials would be seen; rework was not an argument, but a way to find which step went wrong; a master who handled few orders but took only high-risk ones would not be misjudged.
In the end the boss stopped asking who looked busiest. Every day he first looked at which work completed automatically, which work escalated to people, where rework happened most, and whether costs had crossed the line. For the first time the workshop could manage work in progress, not just wait until month-end to see success or failure.