Abstract: A process to identify tumour characteristics involves obtaining three different marker sets each predictive of a characteristic of interest, obtaining a sample gene expression signals from tumour cells, adding a reporter to affect a change in the sample permitting assessment of a gene expression signal of interest in the tumour, combining the gene expression signals with the reporter, correlating the extracted gene expression signals to the three different marker sets, assigning a designation to the extracted gene expression signals according to the following rankings: if the correlation of all three predictive gene expression signal sets predict it to have characteristics of concern, it is designated a bad tumour; if the correlation of all three predictive gene expression signal sets predict it to lack characteristics of concern it is designated a good tumour; and, if the correlation of all three predictive gene expression signal sets do not provide the same predicted clinical outcome, the tumour is designat