15 A STATISTICAL CONTROL CHART IS A GRAPHICAL WHEN PRODUCTION ON TH...

10-15 A statistical control chart is a graphical

when production on the order is started. The

aid that helps workers identify variances that

throughput time is made up of process time,

should be investigated. Upper and lower limits

inspection time, move time, and queue time.

are set on the control chart. Any variances fal-

These four elements can be classified between

ling between those limits are considered to be

value-added time (process time) and non-value-

normal. Any variances falling outside of those

limits are considered abnormal and are investi-

added time (inspection time, move time, and

queue time).

gated.