Supplier Selection Problem Considering Relationships between Suppliers and Supply Disruption Risk in complex products

Coordination and integration between components and subsystems in complex products such as computers, special simulators, aircraft has especial importance. Therefore, it is necessary to pay special attention to the selection of the suppliers for components and subsystems of these products. In other words, in the selection of suppliers for critical and complex components and subsystems, other criteria such as levels of compliance and coordination between suppliers should be considered. The main reason for the inclusion of these criteria in the supplier selection problem is that in the occurrence of supply disruption in sensitive and complex components and subsystems, it’s not easy to switch to other similar suppliers. In this article the amount of compatibility and co-evolutionary between suppliers and their ability to establish interaction with each other as a criteria in supplier selection is modeled using mathematical programming and past performance of suppliers in disruption situation to preserve the most compatibility.