Abstract: A method including loading an input data, the input data in a first data format and having a plurality of input data objects, and loading a plurality of factor definitions. The method also includes determining at least one output object to be created from a subset of the plurality of input data objects, according to the factor definitions. The method also includes applying at least one factor scope, corresponding to the factor definitions, for at least one input object that does not reference another object. The method also includes, for each factor definition, applying a mapping of the subset of the plurality of input data objects to the output object. The method also includes creating an output data, in a second data format and corresponding to the input data, according to the output data objects, and storing the output data. There is also a corresponding data processing system and computer program product.