Delft University of Technology
Faculty Mechanical, Maritime and Materials Engineering Transport Technology / Logistic Engineering
P.E. Hoefkens Vraaggenerator voor een distributieketen.
Computer program, Report 92.3.LT.2950, Transport Technology, Logistic Engineering.
In a distribution chain three levels can be distinguished: the distributor, the retailer and the consumer. The final demand of the consumer can follow three types of patterns:
a constant demand;
a demand with a trend component; a demand with a seasonal component.
The size of the final consumers' demand is seen as normally distributed. There can be a hidden stock at the retailer. Through these two facts, it is not easy to forecast the demand at the distributor.
With the help of a demand generator, developed in the ESPRIT-project, it is possible to forecast the demand at the distributor. This demand generator is translated from C++ into Turbo Pascal 6.0. The program is supplemented in such a way that seasonality can be taken into account.
The number of periods in a year can be adjusted. Every period is given an indexnumber which reflects the ratio of the demand in that period and the year-demand.
At this way seasonal corrections can be applied on the generated final demand of the consumer. Next the seasonal demand at the distributor can be generated per period.
Reports on Logistic Engineering (in Dutch)
