  Performance improvement in supply chains, taking into account customer demand
in the tactical planning process is essential. It is more and more difficult
for the customers to ensure a certain level of demand over a medium term
horizon as their own customers ask them for personalisation and fast
adaptation. It is thus necessary to develop methods and decision support
systems to reconcile the order and book processes. In this context, this paper
intends firstly to relate decision under uncertainty and the industrial point
of view based on the notion of risk management. This serves as a basis for the
definition of an approach based on simulation and decision theory that is
dedicated to the design of cooperative processes in a customer-supplier
relationship. This approach includes the evaluation, in terms of risk, of
different cooperative processes using a simulation-dedicated tool. The
evaluation process is based on an exploitation of decision theory concepts and
methods. The implementation of the approach is illustrated on an academic
example typical of the aeronautics supply chain.
