Economic conditions in recent years prerequisites volume, composition and structure of inventories are key parameters that play a role in the course of the production process. Detailed knowledge of the quantitative and qualitative state inventories in each plant is essential for its functioning. One of the most important challenges facing build-to-order ship manufacturers is the wide variety of product offerings, commitments to rapid order fulfillment and near-zero inventories creating demand for individual parts that vary wildly from day to day, while supplying these parts globally with long and variable lead times.