This book shows how to modify IBM-provided defaults to produce an efficient runtime environment. Even simple tasks-such as adding applications, modifying the initial menu, and allowing a nonintelligent workstation to have multiple jobs active-affect how work starts and runs on the system. Complex tasks-such as changing the attributes of subsystems, pools, job queues, and routing entries-affect a system’s efficiency and usability even more. All of these modifications involve changes to the default work management parameters, and too often these changes are made incorrectly, resulting in an inefficient or nonfunctioning system. This book fully explains how iSeries and AS/400 work management to improve response time, manage workloads more efficiently, and maximize the performance of an IBM midrange computer.