Topics: Baking, Oven, Microwave oven Pages: 8 (1455 words) Published: February 19, 2008
KRISTEN'S

COMPANY (A1)

The overview of the process:

QUESTION 1

If we make a table, we can see that the minimum time to fill a rush order is 26 minutes.

ACTIVITYRESOURCETIMESTART TIMEFINISH TIME
Order EntryE-mail0 minutes00:0000:00
Wash Bowl, MixSelf6 minutes00:0000:06
Fill TraySelf2 minutes00:0600:08
Start OvenRoommate1 minute00:0800:09
BakingOven9 minutes00:0900:18
RemoveRoommate0 minutes00:1800:18
CoolNone5 minutes00:1800:23
Pack & Collect MoneyRoommate3 minutes00:2300:26

QUESTION 2

It doesn't take twice as long to produce two batches as it does to produce one batch, because we can start mixing the second batch without having to wait for the whole first-batch process to be completed (we can start washing out the bowl as soon as we finish filling the tray).

Plus, for the second order, we have to wait 2 minutes to finish baking process of the first order for using the owen again. It is possible to produce two batches in 36 minutes. This shows that it takes an additional 10 minutes for each extra dozen (Similarly it takes 46 minutes to produce 3 dozen). In 4 hours per night, it is possible to produce 22 dozen of cookies.

ACTIVITYRESOURCETIMESTART TÝMEFINISH TIME
Order Entry 1E-mail0 minutes00:0000:00
Wash Bowl, Mix 1Self6 minutes00:0000:06
Fill Tray 1Self2 minutes00:0600:08
Start Oven 1Roommate1 minute00:0800:09
Baking 1Oven9 minutes00:0900:18
Remove 1Roommate0 minutes00:1800:18
Cool 1None5 minutes00:1800:23
Pack & Collect Money

Order Entry 2Roommate

E-mail3 minutes

0 minutes00:23

00:0000:26

00:00
Wash Bowl, Mix 2Self6 minutes00:0800:14
Fill Tray 2Self2 minutes00:1400:16
Start Oven 2Roommate1 minute00:1800:19
Baking 2Oven9 minutes00:1900:28
Remove 2Roommate0 minutes00:2800:28
Cool 2
Pack & Collect Money
None
Roommate5 minutes
3 minutes00:28
00:33
00:33
00:36

QUESTION 3

If we assume that all orders are for one dozen cookies, for myself it takes 8 minutes; for my roommate it takes 4 minutes.

For my self
Wash Bowl,Mix6 minutes
Fill Tray2 minutes

For my Roommate
Oven1 minute
Pack & Collect Money3 minutes

QUESTION 4

We have two type of cost : ingredients and labor. The cost of ingredients is the same per dozen, no matter how many dozen we bake. But the labor cost differs.

For one dozen cookie, as we state above, total labor minutes is 12 minutes. (8 for me; 4 for my roommate)

But if we make two dozen cookies, it increase to 17 minutes. (10 for me; 7 for my roommate)

ACTIVITYRESOURCETIMESTART TÝMEFINISH TIME
Order Entry E-mail0 minutes00:0000:00
Wash Bowl, Mix Self6 minutes00:0000:06
Fill Tray 1
Fill Tray 2Self
Self2 minutes
2 minutes00:06
00:0800:08
00:10
Start Oven 1Roommate1 minute00:0800:09
Baking 1Oven9 minutes00:0900:18
Remove 1Roommate0 minutes00:1800:18
Cool 1
Pack 1None
Roommate5 minutes
2 minutes00:18
00:2300:23
00:25
Start Oven 2Roommate1 minute00:1800:19
Baking 2Oven9 minutes00:1900:28
Remove 2Roommate0 minutes00:2800:28
Cool 2
Pack 2
Collect Money
None
Roommate
Roommate5 minutes
2 minutes
1 minute00:28
00:33
00:35
00:33
00:35
00:36

For three dozen cookie, we have to spend 22 minutes total labor. (12 for me; 10 for my roommate).

ACTIVITYRESOURCETIMESTART TÝMEFINISH TIME
Order Entry E-mail0 minutes00:0000:00
Wash Bowl, Mix Self6 minutes00:0000:06
Fill Tray 1
Fill Tray 2Self
Self2 minutes
2 minutes00:06
00:0800:08
00:10
Fill Tray 3Self2 minutes00:1000:12
Start Oven 1Roommate1 minute00:0800:09
Baking 1Oven9 minutes00:0900:18
Remove 1Roommate0 minutes00:1800:18
Cool 1
Pack 1None
Roommate5 minutes
2 minutes00:18
00:2300:23
00:25
Start Oven 2Roommate1 minute00:1800:19
Baking 2Oven9 minutes00:1900:28
Remove 2Roommate0 minutes00:2800:28
Cool...