Embedded systems are already integrated into our everyday life and play a central role in all domains including automotive, aerospace, healthcare or industry. The complexity of embedded systems and software has grown significantly in recent years. Software's impact on embedded system's functionality, has led to an enormous increase of SW complexity, while reduction of innovation cycles and growing demand for extra-functional requirements. Supporting cooperation between the involved domain and SW development experts to combine their expertise is a core challenge in embedded software development. Nevertheless, today, a lack of tool support and integration makes it impossible to cover the complete development life cycle using model-driven development (MDD) paradigms. This paper identifies patterns of concurrent workflows in embedded system development which can be used to identify dependencies and consequences of concurrency of workflows and thus, highlight the basic problem and provide know-how how to overcome these issues and foster MDD along the development life cycle.