AUTOSAR is an emerging trend in the industry. As such, pilot programs for AUTOSAR must be executed alongside other production programs. Often, a model must be maintained for both AUTOSAR and non-AUTOSAR during the transition phase. This presentation demonstrates practical approaches for migrating a model’s architecture to improve the component-based decomposition of the system while maintaining the flexibility to support AUTOSAR and non-AUTOSAR programs. Use of models to facilitate integration of automatically generated and legacy handwritten code into an AUTOSAR framework are also discussed.