Variability/Waiting Lines and Buffer or Suffer: Which of the following most dire

Question

Variability/Waiting Lines and Buffer or Suffer: Which of the following most directly expresses the motivation behind the expression "Buffer or O A. To increase capacity, it is important to pool queues; otherwise the system will experience longer waiting times. B. If there is variability in the arrival process or in processing times, ensure sufficient inventory exists between stages; otherwise flow rate will be reduced. O C Variability in the service process reduces capacity more than variability in the arrival process. OD. It is important that machines are endowed with systems that avoid breakdowns (security buffers) in order to minimize down time. O E. Variability of inventory should be reduced by adding extra buffers in order to reduce walting time. OF. With increased variability, waiting times can suffer (increase) when there are no buffers and the utilization approaches 1.0.

Explanation / Answer

A safety inventory is a buffer employed to satisfy the need of upcoming customer demand. Phrases buffer or suffer means that if a company is unable to maintain buffer for variabilities like unexpected demand then company will suffer as it may loose customers. Hence the correct option is b. IF THERE IS VARIABILITY IN ARRIVAL PROCESS OR IN ACTIVITY TIMES, MAKE SURE THERE IS SUFFIIENT INVENTORY BETWEEN STAGES, OTHERWISE FLOW RATE WILL BE REDUCED

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