This paper discusses an approach and a proposal of modeling socio-technical production systems. During the analysis and the development of new concepts the need for suitable representation methods emerged. Especially we had to grasp and document varied system aspects and make these aspects understandable for our project team. Surprisingly no standardized, uniform, comprehensive and especially quite complete system modeling standard exists up to the present day. The modeling frame which we developed and which is presented in this paper corresponds first of all to the approach of General System Theory after which complex socio-technical systems a) can be modeled in a hierarchical structure (called "subsystems") and b) aspect-wise (called "aspect systems"). Within the scope of the project we developed several aspect systems, as for example the formal organization, flow of information, knowledge network and social network.