In this work it is assumed that the results of the conceptual design are presented in the form of extended structural scheme. The structural scheme allows to be supplemented with information that specifies the important decisions which secure the expected functionality of the product. There is a propounded approach to integrate structural scheme, loaded with additional design information, into CAD model. This approach allows to automatically generate CAD models of parts that include skeleton models and mechanical interfaces as well as CAD model of assembly in finished state. This way more realistic CAD models containing the actual geometric relationships between the components would be created. On the other hand, the decisions taken at the conceptual design stage are automatically transferred to the CAD model, which reduces the treadmill work associated with its creation.