How are When rules evaluated within a Pega application?

When rules in a Pega application are evaluated declaratively. This means that the evaluation of When rules happens automatically based on the conditions defined within them without requiring a specific order or manual invocation. When rules are primarily used to control the flow of processes by determining whether certain conditions are met. They can help toggle visibility, influence processing logic, and aid in decision-making processes within the application.

The declarative nature of When rules allows them to respond dynamically to changes in data in real-time, enhancing the efficiency and responsiveness of the application. This ensures that the application operates smoothly based on predefined logic without manual checks or procedural interventions.

This signifies that When rules do not need to be run in a specific sequence or as a result of an explicit call, thus making them fundamentally different from sequential or conditional evaluations, which typically rely on a prescribed order of execution or explicit conditions checked at runtime.