1. A method, in a data processing system, for identifying problem components of an enterprise computing system, comprising: obtaining transaction processing performance data for the enterprise computing system; generating a first graph data structure of a transaction processing topology of the enterprise computing system based on the transaction processing performance data; applying one or more graph manipulation mechanisms to the first graph data structure to generate a second graph data structure of the transaction processing topology; and generating a graphical representation of the transaction processing topology based on the second graph data structure, wherein the second graph data structure is a modified form of the first graph data structure.