You can use the Declarative Network Analyzer (DNA) in Dev Studio to display the relationship between properties whose value is calculated automatically (declaratively) based on other property values. The analyzer helps you access declare expression rules with less effort, and provides a clear insight into the properties that the rules reference.
Up to the Pega Platform release 8.4, the DNA tool relied on Flash technology that is gradually being phased out in all modern browsers. This component replaces the existing implementation with auto-generated UI and removes the dependency on Flash technology. While offering the same functionality as the current tool, the updated DNA uses a modern UI that aligns with the Dev Studio look and delivers a tree navigation that is easier to use.