Logistics Inventory Management System
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LIMS is the replenishment parameter calculcation application used
at CERN.
LIMS consists of a set procedures and programs based on refined
mathematical techniques to solve logistical problems, which have been
developed by Dr. B. Schorr and Dr. M. Krever during 19941995. Optimal
parameters are calculated based on a unique mathematical model. Concepts
of probability theory have been applied to derive an accurate expression
for the reorder point and safety stock quantity necessary to meet a predefined
service level. Current development shows the mathematical model used is
broadly applicable in logistics to a large number of situations, wherever
stock is placed as a buffer between demand and supply.
During 1994 we were afraid that the standard functionality in TRITON to
calculate replenishement parameters for the SIC method (Statistical Inventory
Control) might be less performant than the methods used in the system
we were replacing.
In order to evaluate the possible consequences on service level and stock
holding of the standard TRITON functionality we developped a simulation
tool that should simulate the consequences of the different strategies.
We could do this since we had 7 years of details on the sales orders.
While testing the simulation tool which also should serve to evaluate
the possible other commercial packages, Mr. Krever tested some other new
strategies, which looked sufficiently promissing to justify further study.
This resulted in the end in the LIMS package.
The interface between LIMS and TRITON is kept very 'thin', LIMS
receives demand and item data from TRITON, and returns the replenishment
parameters.
LIMS main functions are:
 demand forecasting
 optimal replenishement parameter calculation
 simulation of consequences of replenishment
strategies
For further information on LIMS can be found in the following documents:
If you wish to print LIMS documentation, please use the Word format.
