The often fast-paced environment of a modern coffee shop requires employees to complete tasks, including making drinks and completing sales, in short amounts of time. A coffee shop using the PERT-CPM method can train employees to follow specific steps along critical paths to complete customer orders quickly with little wasted time. This can include assigning specific customer service tasks to each employee over a given shift. For example, one employee focuses on taking customer orders while another employee focuses solely on making coffee drinks. The division of labor allows for overall faster delivery of customer orders.