The Digitalization is driving the change of modern products and services. The transfer of the digitalization towards the industrial production will enable a fourth industrial revolution. In future, production plants will be highly flexible and will contain ma-chines that are linked with each other will have intelligent functions. However, this will also increase the complexity and the dependencies of such plants - within the plant but also to its environment. Planning and Development of such flexible plants will thus bring new challenges. The paradigm of Model-Based Systems Engineering (MBSE) addresses this challenge. In MBSE, systems are developed in an interdisci-plinary manner. Doing so, models are used holistically to support the development processes, describe the development artefacts and to use is for computer-aided func-tions.The goal of this present thesis is a systematics for the modeling of flexible production plants within Model-Based Systems Engineering. In order to achieve this, it presents a concept for modeling, describing the necessary model aspects and the according rules. A procedure model guides the user to create the systems model. A SysML based tool support enables the concrete application. The validation of the approach is done us-ing the example of an industrial laundry.