The artifacts ruleset is intended to hold artifacts designed, published, and generated by using Pega Marketing as a marketer. Artifact examples include Strategies, Segments, and Offers.
Use the rules ruleset to store rules and data instances pertaining to the infrastructure of your marketing application. Examples include class structure definitions and customized rules.
The artifacts ruleset should remain open. It remains open to allow marketers to continue to build marketing assets. The rules ruleset is typically closed after the implementation/customization of the application is complete.