For many companies material flow is a critical but difficult issue. They do not have sufficient information on how their products are flowing through the production, and how they can identify bottlenecks and problems. This master thesis deals with the flow of goods through a production system. It is based on a real project, but described in a generic way. The master thesis starts with the description of planning a material flow project and what the phases of such a project are. It is shown how the system borders of a material flow project are set to guarantee well-defined interfaces to the environment. In the next step, it is described how the current situation is analyzed and how it can be visualized. Now, it is possible to define an optimized, theoretical material flow and it is shown how it can be presented. An example is used to demonstrate this, and a factory layout is created. Following some theoretical foundations about flow orientation, some basic facts about storages are discussed. An overview of location and movement strategies is given, the next chapter explains, why it is necessary to set up a controlling and measurement system and how flow objects can be identified. A Conclusion and outlook is found in the last chapter.