Takt time vs cycle time vs lead time: calculate the right clock
A worked shift example separates customer pace, observed process speed and end-to-end delivery time, with practical checks before changing the line.
Lead time
Elapsed time from a specified start event to a specified completion event.
Production lead time can run from release into production to completed output; order lead time can include order handling and delivery. Waiting, transport, inspection and queues belong to the chosen boundary even when no processing occurs. Compare lead time with takt and cycle time before assuming a faster machine solves a delivery delay.
See also: Cycle time · Takt time · Work in process (WIP)
Use the concept: Cp, Cpk, Pp & Ppk calculator · Downtime log template · MTBF, MTTR & availability calculator
In depth
MTBF and MTTR: calculate availability without hiding downtime
A maintenance example explains operating-time denominators, repair boundaries, unfinished events and why MTBF is not an equipment lifetime.
CMMS implementation: getting maintenance data worth trusting
Implement a CMMS that technicians actually use — asset hierarchy, PM optimization, work-order discipline, spares, and KPIs that drive decisions.