The ApplicationName-NBADTests ruleset is created and used to hold NBA Designer Persona tests. This Persona Tests allow you to define test cases and the expected results to ensure you don't introduce any regressions as you define your Engagement policies and Arbitration. You can define and run Persona Tests at each level of your business hierarchy. Each test is also added to a Test Suite and added to your DevOps pipeline process.
We'll update the Implementation Guide to reflect this.