Developer Transformation Guide > Match Transformations in Field Analysis > Field Match Type Options
  

Field Match Type Options

The Match Type view contains a single option that applies to dual-source match analysis. The option identifies the master data set. The Match Type view does not contain an option for single-source match analysis.
When you analyze two data sets, you must select one as a master data set. If neither data set represents a master data set in the project or the organization, select the larger data set as the master data set.
Use the Master Data Set option to specify the master data set.