HST$400-$ Week $5$ Exercise on Capacity Planning

The following diagram shows a four$-$step process that begins with Operation $1$ and ends with Operation $4.$ The rates shown in each box represent the effective capacity of that operation.

$1.$ Determine the capacity of this process.

$2.$ Which of the following three actions would yield the greatest increase in process capacity? $($i$)$ increase the capacity of Operation $1$ by $15$ percent; $($ii$)$ increase the capacity of Operation $2$ by $10$ percent; or $($iii$)$ increase the capacity of Operation $3$ by $10$ percent.