Only by accurately measuring the work can you begin to improve the activity or process
A business needs to have measures that together point towards what is an improving, static or worsening situation. These measures should also help to point to the reason for what has been identified.
To assess performance in a business you need various measures – no single measure will suffice. There isn’t one single performance measure on which you can base decisions to run your business. After all, prescription no business has just one KPI (Key Performance Indicator).
Performance can be measured at several different levels (cars per year, cars per week, manhours per car). Most importantly it should be measured and monitored over periods of time that are appropriate to the business.