Policy Controlled Automated Management of Distributed and Embedded Service Systems.

The management of distributed service systems is a complex task as changes in the system and the environment may induce reconguration tasks to be handled. In this paper, we deal with the automated reconguration of serviceoriented, embedded systems. Depending on the environment such a system encounters, some of the services may need to be recongured depending on certain conditions like temperature or battery state. In our approach, the task of automatic adaptation to a changing environment is divided into two parts: At design time, various congurations are generated for a service and are mapped to specic environmental conditions. For this we adopt the approach of model-based management and GRBAC to ease the creation of complex management policies. At runtime, a reconguration service gets aware of changes in the environment, selects the appropriate congurations for the services it is responsible for, and enforces the new congurations.