A computer program product, apparatus, system, and method are disclosed for automatic generation of a map definition. The computer program product performs operations for such generation. These operations include identifying a source data structure and a source attribute associated with the source data structure and identifying a destination data structure and a destination attribute associated with the destination data structure. These operations also include automatically identifying a match of the source attribute and the destination attribute and generating a map definition inclusive of the match. The computer program product, apparatus, system, and method thereby reduce human intervention in the creation of a map definition.