Chapter 2: Q.12-4PE (page 314)
Question: The series of international quality standards.
Answer
The International Standards organization (ISO) is a set formal criterion for quality certifications.
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This is a step in a process that is the slowest compared to the other steps. This step limits the capacity of the process.
A graphics reproduction firm has four automatic equipment units but occasionally becomes inoperative because of the need for supplies, maintenance, or repair. Each Unit requires service roughly twice each hour, or, more precisely, each Unit of equipment runs an average of 30 minutes before needing service. Service times vary widely, ranging from a simple service (such as pressing a restart switch or repositioning paper) to more detailed equipment disassembly. The average service time, however, is minutes. Equipment downtime results in a loss of \(20 per hour. The one equipment attendant is Paid \)6 per hour.
Using finite queuing analysis, answer the following questions:
A. What is the average number of units in line?
What are the pros and cons of starting a simulation with an empty system? With the System in equilibrium?
What are the Three Ts relevant to poka-yokes in service systems?
Question: An important difference between service and manufacturing operations is that customers introduce far more variability into the operations in a service system. Name at least three of the basic types of variation that customers bring to a service system.
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