Data Domain Discovery in Informatica Developer Overview
Use the data domain glossary to manage data domains. To create a data domain, you can use predefined data rules and column name rules. You can also generate the data domain based on specific values or patterns in the column profile results.
You can select the source columns, data domains with which you want to match the column data and column name, sampling options, drill-down options, and run-time environment. You can choose the maximum number of rows you want to perform data domain discovery on. You can choose a conformance criteria for data domain discovery. You can exclude null values from data domain discovery. After you run a profile, you can verify, curate, and drill down on the results. You can also add the results to a data model from the editor in the Developer tool.
You can create a profile with a sampling option and filters to perform data domain discovery. When you run the profile, you apply the sampling option and filters on the data source and generate a data set. The data domain discovery process uses the data set to discover data domains.