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.
Would Japan benefit from Globalization?
Consider the diverse means of differentiating products and services. Which ones have the most impact on your choices? Why? Explain. Bottom of Form
Earned value measurement is a technique: Answer Suitable for risk monitoring and control Unsuitable for risk monitoring and control Suitable for risk monitoring but uns
what is process design in operation management
Should health care workers receive the flu vaccine? I f not why not?
The following process is designed to handle 120 customers a day. The customer is “processed” through each of the two operations, A and B, in sequence form. The average rate of each
What is the role of participation in goal setting? Answer Participation is positively correlated with performance Participation provides more goal clarity Participation
Types of Manufacturing System & Layout A layout essentially refers to the arranging and grouping of machines which are meant to produce goods. Grouping is done on different li
An assembly line with 30 activities is to be balanced. The total amount of time to complete all 30 activities is 42 minutes. The longest activity takes 2.4 minutes and the shortest
The regime in China has been known to manipulate it currency creating a competitive a world competitive advantage for the manufacturing of goods. Evaluate the impact to the U.S. ma
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