The strategically appropriate dimensioning of inventory in the process chain is of utmost importance for companies. In this context inventory is utilized to counterbalance variations of the behaviour of customers as well as delivery date or quantity deviations caused by suppliers. It is a huge challenge to dimension the inventory as to realize a high level of security but also low stocks. This article demonstrates the methodical approach, the outcome of the Logistic Stock Analysis, and the validation of planning methods showcased for a project at the electronic factory of Siemens, Amberg.