Kristen s Cookie Case
Case Report: Kristen’s Cookie Company
Do Tra My – Section 24
1. Process Analysis: The flow chart is included in the Appendix
Task
Order Entry
Wash+Mix
Spooning
Setting
Baking
Cooling
Packing
Accepting Payment
Total
Resource
None
You
You
Roommate + Oven
Oven
None
Roommate
Roommate
Cycle Time (mins/dozen)
0
6
2
1
9
5
2
1
26
Capacity
(dozens/hour)
Infinity
10x3=30
30
60
6.67
12
30
60
Flow Time (mins)
6
2
1
9
5
2
1
26
Table 1: Process Analysis
Assumptions:
Order is for a full box (a dozen cookies),
The rush order takes priority before any other order
The amount of time to fill a rush order is equal to the sum of the cycle time of all stages: 6+2+1+9+5+2+1 = 26 minutes
2. Assumptions:
Each person orders only one box (one dozen) and orders are constant and unlimited
The first order came in at the beginning of operation hours
Total amount of operation hours in minutes: 4x60 = 240mins. The process analysis above showed us that the bottle neck of the process was the combination of two stages: setting and baking, which accounted for 10minutes in total.
Capacity of the bottle neck = capacity of the process = 60/10 = 6 dozens/hour.
We can visualize this by the table in Appendix 2 which analyzes the time needed to fill the first two orders as a sample. In this table we assume that the shift started at 19:00. As expected, it only took 10minutes to fill the second order and not 26 minutes. Therefore, after the first order filled (after the first 26 minutes), the number of orders filled is: (240 – 26)/10 = 21.4 order
The total number of orders filled including the first order is 21.4 + 1 = 22.4 orders
Since the number of order must be whole, the maximum number of orders filled by a four hour shift is 22 orders.
3. Assumptions: Each person orders 1 box only
According to table 1, your own valuable time = wash/mix + spooning = 6+2= 8mins
Your roommate‘s valuable time = setting oven + packing + accepting payment = 1+2+1= 4mins
4. According to the case, the unit cost of the
Do Tra My – Section 24
1. Process Analysis: The flow chart is included in the Appendix
Task
Order Entry
Wash+Mix
Spooning
Setting
Baking
Cooling
Packing
Accepting Payment
Total
Resource
None
You
You
Roommate + Oven
Oven
None
Roommate
Roommate
Cycle Time (mins/dozen)
0
6
2
1
9
5
2
1
26
Capacity
(dozens/hour)
Infinity
10x3=30
30
60
6.67
12
30
60
Flow Time (mins)
6
2
1
9
5
2
1
26
Table 1: Process Analysis
Assumptions:
Order is for a full box (a dozen cookies),
The rush order takes priority before any other order
The amount of time to fill a rush order is equal to the sum of the cycle time of all stages: 6+2+1+9+5+2+1 = 26 minutes
2. Assumptions:
Each person orders only one box (one dozen) and orders are constant and unlimited
The first order came in at the beginning of operation hours
Total amount of operation hours in minutes: 4x60 = 240mins. The process analysis above showed us that the bottle neck of the process was the combination of two stages: setting and baking, which accounted for 10minutes in total.
Capacity of the bottle neck = capacity of the process = 60/10 = 6 dozens/hour.
We can visualize this by the table in Appendix 2 which analyzes the time needed to fill the first two orders as a sample. In this table we assume that the shift started at 19:00. As expected, it only took 10minutes to fill the second order and not 26 minutes. Therefore, after the first order filled (after the first 26 minutes), the number of orders filled is: (240 – 26)/10 = 21.4 order
The total number of orders filled including the first order is 21.4 + 1 = 22.4 orders
Since the number of order must be whole, the maximum number of orders filled by a four hour shift is 22 orders.
3. Assumptions: Each person orders 1 box only
According to table 1, your own valuable time = wash/mix + spooning = 6+2= 8mins
Your roommate‘s valuable time = setting oven + packing + accepting payment = 1+2+1= 4mins
4. According to the case, the unit cost of the