1. A computer implemented method for processing after image data, the method comprising: receiving a first after image business graph; performing a first transformation on the first after image business graph to produce a generic after image business graph; performing a second transformation of the generic after image business graph to form a second after image business graph; receiving information defining a delta, wherein the delta represents changes to the first after image business image; performing a third transformation of the second after image business graph to form a delta business graph using the delta; and performing a fourth transformation of the delta business graph to form a generic delta business graph.