Some new performance considerations in open distributed environments

Some novel issues relevant to emerging open distributed environments, of which a long term intelligent network (IN) architecture represents a telecommunication-specific example, are addressed. IN has the goal of supporting rapid introduction, modification, execution, and management of a broad range of multimedia information services and will build on advances in broadband technologies and open distributed processing. Emphasis is placed on the performance concerns and new quality of servicer requirements as a consequence of new technologies and market forces. The open distributed processing (ODP) trader component is selected to categorize the trader according to various characteristics depending on its possible operational environments. This enables the identification of various trader goals which could be achieved in part by attention to quality of service objectives. A universal publicly owned trader is studied, implementing an essentially social selection policy where an overall system delay is chosen as a performance measure having an impact on quality of service and hence overall enterprise goals. It is concluded that a minimum workload selection policy can produce acceptable system response times under assumptions of quite high delays in the provision of dynamic state information