Katie Posh runs an upscale nail salon.The service process includes five activiti
ID: 1720348 • Letter: K
Question
Katie Posh runs an upscale nail salon.The service process includes five activities that are conducted in the sequence described below.(The time required for each activity is shown in parentheses): Activity1: Welcome guest.(1minute) Activity2: Clip and file nails.(3minutes) Activity3:Paint.(5minutes) Activity4: Dry.(10minutes) Activity5:Checkout thecustomer.(4minutes) Three servers(S1,S2,andS3)offer the services in worker--paced line.The assignment of tasks to servers is the following: S1 does Activity1. S2 does Activities 2 and 3. S3 does Activities 4 and 5. The drying process does not require server3’s constant attention; she/he needs to only escort the customer to the salon’s drying chair (equipped with fans for drying). The time to do this is negligible.There exists only one drying chair in the salon. PN1.Which resource is the bottleneck of the process? PN2.What is the utilization ofserver2? Assume that there is unlimited demand and that The process only admits customers at the rate of the bottleneck. Thank you
Explanation / Answer
Time taken by Server 1 = 1 minute
Time taken by Server 2 = 3 minutes + 5 minutes = 8 minutes
Time taken by Server 3 = 10 minutes + 4 minutes = 14 minutes
Hence the Server 3 is the resource bottle neck of the problem, since it takes the longest time of 14 minutes
b) Sever 2 can switch the task with the server 3 in order to reduce the time taken by the server 3
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