Kerry Chen
Professor Leon Zhu
T- Th 6 – 8
3235304880

Process Analysis and Capacity Management
BUAD311- Operations Management
Fall 2014

Due 6:00 pm on September 11

Q1 (15 points) At a make-to-order hamburger shop, there is one worker who cooks patties, two workers who assemble burgers, and one cashier. The oven can cook patties in 4 minutes and the oven can cook up to 20 patties at one time. Each burger assembler can assemble a burger in 40 seconds. It takes the cashier 6 seconds to collect payment.

a) (5 points) What is the capacity of the hamburger restaurant in customers per minute?[1] What is the bottleneck?

Oven – 20 patties every 4 minutes or 300 patties an hour

Burger Assemblers – 2 burgers ever 40 seconds or 180 burgers per hour

Cashier – 10 customers her minute or 600 customers per hour

The capacity of the restaurant is 3 customers per minute or 180 customers per hour. The bottlenecks are the burger assemblers.

b) (5 points) If two more burger assembler is hired, what is the capacity of the burger store? What is the bottleneck?

Since two more assemblers are hired the restraunt is capable of producing 4 burgers over 40 seconds or 6 burgers per minute. In a span of an hour they can produce 360 burgers, so the new bottleneck would be the oven. Likewise, the capacity of the restaurant increases to 300 customers per hour.

c) (5 points) Disregarding part b), if the restaurant buys another oven,[2] what is the capacity of the restaurant? What is the bottleneck?

The capacity will still remain at 180 customers per hour, because the bottleneck will still be the assemblers.

Q2 (25 points): Q 2.5 on page 42 of the textbook. As implied by the problem, each activity utilizes its own resource.

|Time |Grilled Veges |Veges |Cream Cheese |Total |Implied Utilization | |Cut |60 min |3 x 3