Abstract
In this paper we present a new modelling approach for realistic simulation
of supply-chains. It is based on an objectoriented architecture,
which enables flexible specification of the supply-chain configuration
along with its operational decisions and policies.
Amodel of a generic supply-chain node is developed to capture the
features present in all supply-chain entities. The generic node models
in detail activities such as inventory control, manufacturing processes
and order handling. The supply-chain model is constructed by linking
generic nodes and specifying the physical and business attributes
of each supply-chain member. The generic-node model may also be linked
to external software for greater accuracy, e.g., detailed production
scheduling or optimisation.
The model provides a fully dynamic simulation of the supply-chain
and the effect of various uncertainties can be evaluated through
Monte Carlo simulation and other, more efficient, sampling techniques
(not described here). Acase study is presented to illustrate the
applicability of the model. The case study demonstrates how the effect
of policy changes on the supply-chain performance under uncertainty
can be evaluated before implementation.
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