You create a Decision Data rule by modifying an existing rule.

1. Create a Decision Data rule for entity extraction by using the Save as option in an existing Decision Data rule for entity extraction.
2. Access any Decision Data rule that contains an Apache Ruta script for extracting structured entities:
   1. In the navigation pane of Dev Studio, click Records.
   2. Expand the Decision category, and then click Decision Data.
   3. From the list of Decision Data rules in your application, select a rule that contains the script to use as the basis for developing the new entity extraction rule.
3. Create a new Decision Data rule to contain your custom Apache Ruta script:
   1. On the Decision Data rule form, click Save as.
   2. Specify a new label and identifier.
   3. Optional: If you want to save the rule as part of a different ruleset, in the Context section, specify a new ruleset and Applies to class.
   4. Click Create and open.