This paper introduces a semi-automated approach to the creation of a detailed design model from an early stage conceptual design, including details of the major software components for such a system, the requirements placed on all participating simulation tools, as well as a formalized process for managing the data in an automated way. The proposed method is compatible with industry-standard simulation tools, so long as they provide the required or a complementary application-programming interface. The example system that is described uses common simulation tools for the development of the detailed system models. Certain steps in the process are not fully automated, and in these cases, we identify the missing software functionality that is required of the simulation tools and propose a formalized approach for handling these situations.