e a hershop offers different types of cut and hair perm Bills barmen. The proces
ID: 382843 • Letter: E
Question
e a hershop offers different types of cut and hair perm Bills barmen. The process flow in Figure 7.8 shows that rbershop off styling for mers go through steps Bl and B2, and then can be all cod at either of the two workstations at step B3. They shen proceed through step B4 or steps B5 and B6, then fin- ich with step B7. The numbers in parentheses indicate the minutes it takes that activity to process a customer. How long does it take for a customer to get through the entire service process if she was processed at a. steps B3-a, B4, and B7? At steps B3-b, B5, B6, and B7? b. What single activity is the bottleneck for the entire 3. 2 procesS c. Assuming that the business operates on an 8-hour schedule and half the customers go through steps B3-a, B4, and B7, and the other half through steps B3-b, B5, B 6, and B7, how many customers can be served? B3-a (15) B4 (20) B1 (10) B2 B6 B3-b (10) B5 (10) T3-aExplanation / Answer
ANSWERS:
a) The duration takes for a customer to get through the entire process at step B3-a, B4 and B7 is 62 minutes. Explanation: B1 (10) + B2 (8) + B3-a (15) + B4 (20) + B7 (9) = 62 minutes.
The duration takes for a customer to get through the entire process at step B3-b, B5, B6 & B7 is 52 minutes. Explanation: B1 (10) + B2 (8) + B3-b (10) + B5 (10) + B6 (5) + B7 (9) = 52 minutes.
b) The single bottleneck for the entire process is Activity B4.
Explanation: Activity B4 only requires the longest duration for completion in the entire process.
c) Total number of customers that can be served is Forty Two (42) People.
Explanation: As explained for question (a), the duration taken per customer at step B3-a, B4 and B7 i is 62 minutes and B3-b, B5, B6 & B7 is 52 minutes. The difference in duration between the two flows is 10 minutes. As said ,the total business operation is 8 hour schedule and since the minimum time required for a customer is 52minutes the last customer can be taken 52 minutes prior, so we can say effective hours is 7 hours & 8 minutes. So, the capacity per hour is 6 customers (60/10) and for 7 hours it is 42 customers (7x6).
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