What is progressive disclosure and how is it applied in Salesforce page design?

Progressive disclosure is the UX principle of revealing information or controls only when they become relevant, reducing cognitive load on the user. It avoids overwhelming users with all possible options upfront. Applications in Salesforce:

1. Dynamic Forms: Show the "Escalation Reason" field only when Priority = "High" — the field is hidden until it is needed.
2. Collapsible sections on page layouts: Secondary information (e.g., system fields, audit dates) is collapsed by default and expanded on demand.
3. Screen Flows: Multi-step wizards break a complex process into digestible steps rather than presenting one long form.
4. Expandable Related Lists: Show 5 records by default with a "View All" link — users who need more can access it without it cluttering the primary view.
5. Utility Bar: Keeps secondary tools (CTI softphone, notes, recent items) in a collapsed bar at the bottom of the app, accessible when needed but not consuming screen real estate.