An enhanced data conversion framework, in which a data record in each of first and second data sources is populated with manually selected, representative sample data, the first and second data sources using different data storage schemas to store the representative sample data as instance values of instance elements. Parameters for a CONCATENATE function or an EXTRACT function are automatically determined based on a selected succession graph, and non-sample data is converted between the different data storage schemas of the first and second data sources, using the CONCATENATE function or the EXTRACT function.