Give each counter a clear meaning
An assembly station may count completed operations, a test point may count attempts, and the line end may count accepted units. Adding those counters can overstate production. Link each counter to its workcenter and agree which quantity is compared with the order.
A different appliance variant may also need a different operation time. Keeping the product and order with the run helps the team compare the actual work rather than applying one speed target to every model.
