Open Issues in Reuse of Certified Components in Cyber Physical Systems
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In this paper we will discuss challenges and directions for component certification in cyber physical systems. Our experiences are based on a decade of research in this area in both more fundamental and more practically oriented projects. While the notion of Component-based Software Engineering has been coined half a century ago, practical use of components is still challenging. There has been much advancement in understanding component-technology. Also the problem of predictable assembly (how to predict properties of systems based on properties of its components) has been successfully solved for a variety of extra-functional properties. In this paper we distinguish embedded systems and cyber-physical systems. Embedded systems area a broad category of systems which include computer systems that are not visible to the end user. Cyber-physical system (CPS) is special category of embedded systems that feature a significant degree of autonomous action in a physical environment. Examples of cyber-physical systems can be found in areas as diverse as aerospace, automotive, civil infrastructure, healthcare, transportation.