Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Time Lag Effects - Operations Function
Feedback control in complex systems can bring its own problems, due to time lag between measuring the output deviation and realising the effects of the corrective adjustments. A well-known illustration of this phenomenon was presented by Jay W Forrester in his book, Industrial Dynamics. He had been consulted by a white goods manufacturing concern which had been experiencing wildly fluctuating production levels over a period of years; despite the best efforts of the company's management they had been unable to keep production output in reasonable balance with customer demand. Forrester and his team studied the operations of the company's distribution chain (shown in simplified form in the figure) and formulated a computer simulation model of the factory - warehouse - distributor - retailers.
The figure below (adapted from Forrester, 1965) shows the results obtained when a 10 per cent step-increase in demand at the retail outlets was introduced. This chart is necessarily 'cluttered', to show how the various order, inventory and production levels changed in response to the initial increase in sales.
For our purposes it will be sufficient if you locate the two lines labeled 'Retail sales' and 'Factory production output'. It was found that, because of a series of time-lags in the chain, the feedback signal was greatly amplified by the time it reached the factory, resulting in over-reaction. Note that the production level climbs by 45 per cent, creating an excessive build up of inventories. In response the production level falls to 3 per cent less than the original level, and so on. It takes about 18 months for the fluctuations to be damped out.
Formulate, but do not solve, the Linear Programming model which minimizes total shipping costs for the question below. Note: Skateboards can only be shipped in whole units (not i
Explain Job Evaluation. A combination of short statements which describe both the necessary requirements of the particular job and the work to be performed is termed as Job Eva
Hi, I am looking to find any potential benefits of the centre of gravity locational theory, in addition to this, would like to know of any potential drawbacks that the theory entai
What do you understand by “line balancing”? What happens if balance doesn’t exist?
Prospective employers can conduct a credit check along with a background check to determine employment eligibility. Do you feel this is good business practice or an invasion of pri
The Northern Emergency Computer Support has a call center with 10 customer service representatives. Historical statistics show that the durations of customer calls are exponentiall
Due to changes in regulatory requirements, the transactions costs associated with selling corporate securities increased by $1 per share. This change will Answer a. cause the co
what are the factors to be considered when making location decisions
Consider the everyday task of getting to work on time or arriving at your first class on time in the morning. Draw a fishbone chart showing reasons why you might arrive late in the
Rules Related to the use the Human Body: R elated to the use the Human Body : a. The two hands should beings as well as complete their motions at the same
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd