This document summarizes a simulation project completed by iSILOG GmbH for ZF Friedrichshafen AG. ZF used the simulation to analyze and improve their value stream processes. iSILOG developed a generic simulation model in Siemens NX that allows non-experts to model value streams. The model incorporates standard objects, processes, and functions to map value streams. It also includes new capabilities like scenario comparison and optimized warehouses. The solution provides standardized, reliable analysis to help ZF continuously improve operations.