Methods and apparatus for processing data. The apparatus includes a plurality of entry systems for receiving the data from a respective plurality of contributors which each formulate the data based on respectively different: a) input data, and b) rules for governing how the input data is used to formulate the data. The apparatus also includes a tracking system having a data normalizer configured to normalize the formulated data received from each of the plurality of contributors into a common format. The tracking system performs at least one comparison of the normalized data from the entry systems and signals results of the comparison.