Application-independent approach for the dynamic management of IT-resources in cyber-physical systems
Maximilian Engelsberger, Thomas Greiner · 2016
This paper proposes an application-independent, SOA-based approach for the dynamic management of IT-resources in distributed cyber-physical systems. According to the networks' openness, the ad-hoc formation and the cross-domain character of future automation systems, design-time and runtime are blurring. Existing methods are limited to one type of resource and are highly specialized to one certain application. Solution-patterns are needed, which allow transferring the needed flexibilities easily to new applications. The contribution of this work is an application-independent approach for dynamic management of IT-resources in CPS, which forms an SOA-based, easy adaptable solution-pattern. Therefore, a resource-based view on CPS, based on the resource-stack model from cloud computing, is introduced as a layer of abstraction. A resource-manager decides which resource to scale and how. The concept is evaluated by an application example from the field of process engineering. Finally, a qualitative evaluation of the described method is performed.