In the past, logistics used to be a core function of production and trading companies but many of them started to outsource at least parts of their logistics functions to specialized logistics service providers in terms of logistics contracts. With this, sophisticated business models such as value added logistics service providers evolved which focus on tasks of planning, coordination and monitoring of entire supply chains involving multiple logistics providers. Challenges remain though, for instance how a complex logistics contract can be planned and how it can be assured that the providers comply with the planned process. In this article, we present a conceptual as well as technical solution to the monitoring of logistics services and show how to reuse this information in a model for the integrated planning of logistics contracts. A simulation model thereby ensures validity of the overall planning. An approach for integrating different models helps to overcome the problem of utilizing multiple models. Finally, an example scenario shows how each part contributes to a successful planning process for logistics contracts.
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