Electronic development in the automobile industry has always been an iterative process—even long before the implementation of AUTOSAR. In the course of a project, requirements are amended or refined; decisions about design are revised and architectures adjusted. Through the standardization of specification formats of different design artifacts, AUTOSAR has explicitly defined how these process steps are carried out. Meanwhile, thanks to advanced tool support, the AUTOSAR standard is being successfully used in many areas of product development. The challenge of these projects is to ensure consistent data exchange between tools without loss of design information.