Derivation of Traffic Volumes for Effective Distribution of Object-Oriented Applications

This paper specifies a procedure to derive trafSic volume information for distribution of objectoriented applications. An accurate picture of trafSic volumes between application components and sites, and among application components is crucial for eflective design of any distributed application. The procedure represents a considerable improvement over the traditional practice of requiring application designers to provide best guess estimates of trafsic volumes among application components. This approach exploits knowledge about the way in which objects are to be fragmented to compile the required traffic volumes. The knowledge utilized includes information on attribute values and messaging needed for transaction scenarios. Estimates of traffic volume generated by this procedure are of immense help to the application designer during the allocation phase of objectoriented system distribution. The procedure is amenable to automation, and has been successfully applied to a real-world application.