When you apply for a mortgage, the prediction of your credit performance is measured by a numerical score. Although there are slight differences among the systems used by major credit reporting agencies, the FICO model is the most popular. The FICO scoring system was developed by Fair Isaac and Company, with the goal of filtering out non-relevant factors, such as race or gender. This single rating score sums up your credit history, projecting the likelihood of meeting future payments and indicating your level of credit risk.