the appraisal, in terms of time, of the value of work involving human effort

machine setting time

time taken by workers to do a job

method of fixing time for workers

detailed calculations

convenience

table of random numbers

past experience

0.0001 minute

0.0006 minute

0.006 minute

0.001 minute

second

minute

hour

day

improving a work method

improvising a work method

designing a work method

reducing inventory costs.