time-and-motion study 
noun
A procedure in which the efficiency of an industrial or other operation is evaluated: a recent time and motion study shows that seven additional workers are needed...
- The army group undertook a time-and-motion study of the most efficient way of laying mines.
- I say run a time-and-motion study test on them and see how they get on.
- At the same time, time-and-motion studies were undertaken to analyse and improve efficiency.
- suprasegmental
- suprasegmentally
- suprasellar
- suprasensible
- suprasensitive
- suprasensitivity
- suprasensual
- suprasensuous
- supra-sentential
- supraspecies
- supraspecific
- supraspective
- supraspinatus
- supraspinous
- suprasterol
- suprasubtle
- coprophagia
- coprophagic
- coprophagous
- coprophagy
- coprophilia
- cops and robbers
- copse
- cop shop
- Copt