Add to ORKGthis report, we use data collected from interviews with a number of application developers and developers of load balancing systems in order to specify a general group of event types that are meaningful in many application contexts and that can be customized to fit individual needs. Furthermore, we present a concept for developing a flexible visualization tool that can help in making good use of recorded events. Our considerations apply to parallel application programs running on a multiprocessor system with distributed memory, e.g., a cluster of Ethernet-coupled workstations or an IBM SP2 parallel computer. A substantial portion of the results are meaningful for different types of parallel systems (like shared-memory multiprocessors) as we...