1. A computer-implemented method for generating a data map, the method comprising: identifying a section of data in a data repository having a source object and a target object; defining, absent direct user intervention, a field map for the section of data in the data repository based on matching the source object to the target object using a rule and a default value, wherein the field map assigns the default value to the target object when the rule to match the target object to the source object does not yield a match; and generating the field map.