Dan works in a potato chip manufacturing plant and is in charge of monitoring the process using dimensions such as timeliness (chip per minute), cost (cost per chip per minute), and quality (oil saturation per square centimeter).
dan focuses on

Dan focuses on process control.

Explanation:

As Dan's work is to check the production of chips per minute, cost of per chips production per minute and quality of chips, so he needs to minimize the cost and increase in production rate as well as maintain the quality of production.

So basically he should be make ways to increase the production rate with decreasing the cost for each chip production per minute as well as maintain the quality. This kind of jobs fall under process control, which means to have a check on the whole process of producing something.