User:Ravrrgr

Performance testing formulas

Capacity is calculated: (number of machines or workers) × (number of shifts) × (utilization) × (efficiency).

Availability = Available Time / Scheduled Time A given Work Center is scheduled to run for an 8 hour (480 minute) shift.

The normal shift includes a scheduled 30 minute break when the Work Center is expected to be down.

The Work Center experiences 60 minutes of unscheduled downtime.

Scheduled Time = 480 min - 30 min break = 450 Min

Available Time = 450 min Scheduled - 60 min Unscheduled Downtime = 390 Min

Availability = 390 Avail Min / 450 Scheduled Min = 90%

Performance = (Parts Produced * Ideal Cycle Time) / Available Time