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.
1. The fraction of orders filled by a distribution center or warehouse within a specific time period is referred to as the A. inventory turnover B. inventory supply time C
You are the project manager for a new multi-million dollar building renovation for your organization. The company needs to maximize the space that they have and the best approach i
Differentiate between (1) exempt and non-exempt employees and (2) line and staff employees.
Technology has changed the role and some functions of HR. Have these changes resulted in HR losing sight of its role towards employee relations and support? While companies are see
Describe Google's customer value proposition and profit formula linked to its business model. What strategies has Google relied upon to build competitive advantage in the industry?
Where in Europe, Africa, and Asia does Nestlé have operations? How many factories do they have in Spain and Thailand? Why does Nestlé have multiple facilities in a single country?
For the four basic configurations that follow, assume that the market is demanding product that must be processed by both Resource X and Resource Y for Cases I, II and III. For Cas
1. Does your company's compensation plans help to attract and retain people with the right skills, knowledge and motivation to help the company succeed? Explain.Company;NYC Dept. f
Economic Feasibility and Behavioural Feasibility Economic Feasibility The value added by the job should exceed, by an acceptable margin, the costs incurred in carrying o
Process Technology Life Cycle Process technologies have life cycles related to product life cycles as shown in figure below. Over time unit manufacturing costs diminish for 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: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd