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Request for examples of supply chain models

Posted: Wed Apr 24, 1996 2:55 pm
by Crawford Neil NRL
Dear all,

I wonder if anybody can point me in the right direction for sources of
information/examples relevant to modelling supply chains.

I have just subscribed to this list and am new to system dynamics. I am
currently working on a project to map the supply chain process in my company
for one of our products. I have built a simple model to date and am about to
embark on taking it to a further level of detail. Currently , the model maps
the sales forecast for up to 2 years ahead driving through the ordering of
raw materials and production of the product to delivery to customers in
several different coutries. The data controlling the ordering, supply and
production is only lead times for each stage at present. I will need to
include aspects such as capacities, production rates, safety stocks, etc..

Any relevant information in this area, particuarly of how to create the
functions in "Stella" (I think) would be very useful to me as I attempt to
develop the model.

Many thanks in advance,

Neil Crawford

E-mail address is Neil.N.R.L.Crawford@gbjha.zeneca.com

Request for examples of supply chain models

Posted: Thu Apr 25, 1996 9:36 am
by Jim Hines
If you want to model the supply chain, you might take a look at some of
the Molecules. In particular, look at Purchasing, Inventory ordering,
Capacity ordering, and Inventory backlog shipping.

I believe you will see these molecules being used in the Lyneis citation
that Michael Radzicki provided. Another source is Forresters
Industrial Dynamics.

Regards,
Jim Hines
LeapTec and M.I.T.
JimHines@Interserv.Com

Request for examples of supply chain models

Posted: Thu Oct 24, 1996 4:58 pm
by "Dr. Michael J. Radzicki"
For Neil Crawford:

To begin studying supply chain dynamics and SD Id look at:

1) Jim Lyneis. 1980. Corporate Planning and Policy Design. Portland, OR:
Productivity Press.

2) D. R. Towill. 1992. "Supply Chain Dynamics -- The Change Engineering
Challenge of the Mid 1990s." Proceedings of the Institute of Mechanical
Engineers. Volume 206. pp. 233-245.

Also look at the citations in the Towill paper, including the paper written
by John Sterman.

Lastly -- Have you ever played the beer game or one of its computerized
versions? This is a good way to learn some supply chain lessons.

Peace.

Mike


Dr. Michael J. Radzicki

Associate Professor of Economics
Department of Social Science & Policy Studies
Worcester Polytechnic Institute
Worcester, Massachusetts 01609-2280
United States of America
(508) 831-5767 (Voice)
(508) 831-5896 (Fax)
mjradz@wpi.edu (Email)