Abstract: For the purpose of rapid response to individual customer demands, the enterprise should possess external flexible supply chain network structure to produce product in a collaborative manner. In our work, different types of collaborative supply chain networks with interative characteristic are considered. An objective function is designed to minimize production costs, inventory costs, waiting costs, and tardy costs, and the merge decision variables is designed to restrict the starting time of same type orders at collaborative enterprise. Additionally, two types of orders:deterministic order and random order are taken into account in our model, and the random order arrival probability at discrete time point in the interval time period is designed. To get optimal collaborative supply chain network production scheduling strategy, four sub-models are construted based on the scenarios of random order arrival or not. Furthermore, main decision model is constructed according to cost difference between two different scheduling strategies:arrange random order production in advance or not. The simulation results show that the merge decision reduces the production costs on the one hand, and lead to tardiness of some orders on the other hand. Meanwhile, the anti-interference ability of different types of collaborative supply chain networks is different when encountering random order.

Key words: collaborative supply chain network, random order, supply chain scheduling, merge decision