(Data Management)

Developing software applications which manage, optimize or adapt themselves at runtime requires an architecture which provides adaptation of software components at runtime. An architecture model that has gained a lot of attention in re-cent years is SOA (service-oriented architecture). In a SOA environment services as well as applications build up com-plex dependencies. Therefore it is crucial for self-managing SOA applications to adapt services at runtime without in-terference of the application execution and the service avail-ability. In this paper, we discuss the problems arising from the requirement of runtime adaptation and present our solu-tion by replacing service implementations at execution time in a service-oriented component model. For a seamless in-tegration we strive for a transparent and atomic replace-ment of a service implementation in respect to the other services/applications