Answer:
She was using the time and motion study.
Step-by-step explanation:
The tool Lauren used is the time-and-motion study. This technique was made for business efficiency. It is a set of tools that is useful for increasing efficiency by making work simpler as well as setting standards and combining it with some sort of worker motivation in terms of wages.
It is a combination of time study done by Frederick Taylor and motion study done by Lilian and Frank Gilbreth.