1. A computer implemented method for processing after image data, the method comprising: receiving a first after image business graph, wherein the first after image business graph comprises a result of a query against a data source after the data source has changed, and wherein the first after image business graph does not show changes in the data source; performing a first transformation on the first after image business graph to produce a generic after image business graph; performing a second transformation on 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 graph; 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, wherein the generic delta business graph shows changes in the data source.