The present invention is a system and method for forecasting and expanding software workload boundaries. The system includes a computer processor having a non-transitory memory containing program code for receiving a resource tree data set identifying a plurality of resources in a resource tree; receiving a sequence information set indicative of an order of resources for a request type; receiving a historical usage information set indicative of actual resource usage for the request type with respect resources in the resource tree; receiving a current throughput value for the request type; and determining, based at least in part upon the resource data tree set, the sequence information set and the current throughput values, a first additional potential throughput value corresponding to additional throughput with respect to the request type that can be performed by the resource tree in addition to its current throughput.