Within Application Properties in Appian, you can set two groups: Administrators Groups and Users Groups. The Administrators Group is responsible for managing and configuring the application, while the Users Group is designated for end-users who interact with the application's functionalities.
Reference:
Appian Documentation: Application Properties

In Appian, when an interface references an expression rule, the interface is considered a dependent because it depends on the expression rule to function correctly. Conversely, the expression rule is a precedent because the interface relies on it.
References
* Appian Documentation: Managing Application Contents

When configuring a Related Action for an entity-backed record type, the proper domain prefix to reference the record data passed into the Process Model as context for the Record Action is pv!. This prefix stands for process variables, which are used to pass data into and out of a process model. In the context of a Related Action, pv! would be used to reference the specific process variables that are configured to receive the record data.
Reference: Appian Documentation - Process Variables and Record Types