Operations Management Case Solution And Analysis, HBR Case Study Solution & Analysis of Harvard Case Studies

Operations Management Case Solution

Questions and Decisions

(1) all orders are for two identical pizzas; (2) each pizza sells for $10; and (3) Annie is advertising made to order pizzas so that all activities in the process are started only after the order is received.

(6 pts) Draw a process flowchart

The process flow chart for the given case is drawn below:

(6) What is the minimum time to fill a rush order; assuming that all steps of the process are started only after the order is received? Without spending money, how can you reduce this response time?

In order to calculate the minimum time to complete a rush order with the assumptions that all the steps of the process are started only after the order is received.

	Sisters			Time (minutes)
TASK		Order	Two Pizzas
	Annie	Processing	Prepare pizza
			Washing the bowl and mixing the sauce	2
			Prepare dough
			Mixing ingredients and manual kneading	3
			Put the dough into pizza pan	3
	Amy		Loading in oven	1
			Baking	15
			Pizza pan out of oven	1 second
			Cooling the pizza	4
		Finished Goods	Putting the finished good in delivery box	2
		Selling	Charging the customer and making the order ready for pick up	4
	Total Time			34 minutes and 1 second

(5) What is the maximum number of orders that the take-out facility can fill per hour in steady state? Assume that there are sufficient pizza pans to ensure that no order has to wait for pans to become available. How does your answer change if the cooling time is increased from 4 to 6 minutes?

The maximum number of orders that the take-out facility can fill per hour in a steady state with the assumptions that there are sufficient pizza pans to ensure that no order has to wait for pans to become available is calculated as below:

With the help of the chart below, it can be seen that six orders of pizzas can be filled per hour.

	Sisters			Time (minutes)
TASK		Order	Six Pizzas
	Annie	Processing	prepare pizza
			washing the bowl and mixing the sauce	4
			prepare dough
			mixing ingredients and manual kneading	6
			put the dough into pizza pan	9
	Amy		loading in oven	3
			baking	15
			pizza pan out of oven	3 seconds
			cooling the pizza	4
		Finished Goods	putting the finished good in delivery box	6
		Selling	charging the customer and making the order ready for pick up	12
		Total Time		59

By changing the cooling time from 4 to 6 minutes, the results will not be changed significantly as all pizzas can be cooled at one time and the resulting time will be just the addition of 2 minutes in the 59 minutes i.e. 61 minutes.

(4) If Amy calls in sick, what is the maximum number of orders that can be filled per hour? (assume that Annie will have to do everything herself)

If Amy falls sick, then the maximum number of orders that can be filled per hour with the assumptions that Annie will have to perform the entire task is approximately 4 orders, which is calculated by adding the amount of time of first two orders again................

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Operations Management Harvard Case Solution & Analysis