Waits and Lead Time

Wait Triangles

Wait triangles mark time that passes before each process starts.

highlighted = computed this step

First wait

The wait before Order Entry is 30 minutes.

wait before Order Entry=30\text{wait before Order Entry}=30
Waits and lead timeWait triangles are included in lead time even though they are not process time.waits and lead timeprocess 9; wait 120; lead 129wait30Order Entryprocess 2wait60Pickprocess 4wait30Packprocess 3stepwait beforeprocessOrder Entry302Pick604Pack303process total9wait total120lead time129efficiency3/43deterministic snapshot only

Other waits

The waits before Pick and Pack are 60 and 30 minutes.

other waits 60 and 30\text{other waits }60\text{ and }30
Waits and lead timeWait triangles are included in lead time even though they are not process time.waits and lead timeprocess 9; wait 120; lead 129wait30Order Entryprocess 2wait60Pickprocess 4wait30Packprocess 3stepwait beforeprocessOrder Entry302Pick604Pack303process total9wait total120lead time129efficiency3/43deterministic snapshot only