m5l6 - Fall 2011Module 5 Production & Quality Lecture...

Info iconThis preview shows pages 1–10. Sign up to view the full content.

View Full Document Right Arrow Icon
David Robinson © D. Robinson, 2011 Fall 2011Module 5 Lecture 6: Service Operations II
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 Service Operations II Answer to the queuing problem How we handle uneven time-to-serve Improving service operations Dealing with the four sets of problems we identified last lecture
Background image of page 2
3 Review from the previous lecture Queuing theory example
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
4 Average number of people in the queue: = Practice Q on Queuing Theory λ 2 µ (µ - λ ) Try this with (Arrival Rate) λ = 10 / hour (Service Rate) µ of 12 / hour (5 minutes )
Background image of page 4
5 An Example of Queuing Theory Solution Average number of people in the queue: λ 2 µ (µ - λ ) Try this with (Arrival Rate), λ = 10 / hour µ (Service Rate) of 12 / hour (5 minutes) 100 ---------------- = 12 (12 – 10) =
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
6 Service times: ( only a few people take forever) Number of customers Time to serve, minutes A very few customers take very long times Distribution is usually exponential
Background image of page 6
Routines and Exceptions How we handle “Variable time to serve” 7
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
8 Routines and Exceptions 1. Set up service process to manage the routine transactions efficiently 2. Train workers to identify exceptional transactions 3. Remove the exceptions from the process
Background image of page 8
9 Routines and Exceptions 1. Set up service process to manage the routine transactions efficiently
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 10
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 30

m5l6 - Fall 2011Module 5 Production & Quality Lecture...

This preview shows document pages 1 - 10. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online