Service management using up-to-date quality properties

The ever increasing growth of global computer networks is leading to an open service market which will rely on strategies for service trading. These services have to meet the requirements of their customers. The distributed platform ANSAware offers suitable facilities, but is too short of concepts that cope with the dynamic character of service properties. Therefore, the process of trading was extended by strategies providing an update of dynamic attributes during run time. These strategies are presented and compared, taking measurements into account. Furthermore, an architecture is described which supports the update of property values through recording, evaluation and processing.