Process flow diagram
Inputs Basic Dough, Ingredients
Output Cookies packed in boxes
Flow Units Cookies
Resources Kristen and her roommate, Oven, Spoons, Trays, Food Processor
Assumptions
1. An order is for a dozen cookies of any one type.
2. Kristen and her roommate work for 4 hours per day.
Q1. Time Taken for a rush order = Sum of time taken for Activities 1,2,3,4,5,6, and 7 for an order = 6 + 2 + 1 + 9 + 5 + 2 + 1 = 26 minutes
Q2. Process Capacity = minimum of time taken for all process steps. Process step capacity = # of resources / Activity Time ( The values for each step are mentioned in the process flow diagram above.) Hence Process Capacity = minimum ( 40,120,240,26.6,48,120,240) = 26.6 orders/day Or in other words, Kristen and her roommate can fill in 26.6 orders in four hours.
Q3. Time taken by Kristen for one order = Time taken by Kristen to perform activity 1 and 2 = 6 minutes + 2 minutes = 8 minutes.
Time taken by her roommate for one order = Time taken to perform activities 3,6, and 7 = 1 minute + 2 minute + 1 minute = 4 minutes.
Q4. Discounts can be given to people who order two dozen or more cookies. This is because, Activity 1 (wash bowl, add and mix ingredients) that is performed by Kristen will take only 6 minutes per order for a maximum order size of 3 dozen cookies. So Kristen will spend the same 6 minutes for activity 1 regardless of whether the order quantity is 1,2, or 3 dozens. Similarly, Activity 7 performed by Kristen's roommate will take 1 minute per order regardless of the order size.
So, The time taken for activity 1 and 7 together