Single-Action Screen Layout for High-Stakes Decisions
Screens requiring high-stakes decisions (submitting an expense, confirming a bulk registration, acknowledging a declaration) must use the single-action screen layout, which suppresses the bottom navigation bar, removes all secondary links, and presents only the content relevant to the decision and a maximum of two clearly contrasting action buttons (confirm and cancel/back). This pattern is applied selectively by the cognitive load rule engine based on screen classification.
User Story
Acceptance Criteria
- Given I reach a confirmation screen for an irreversible action (submit report, send declaration), When the screen renders, Then the bottom navigation bar is hidden and only the confirmation content and two buttons are visible
- Given the single-action screen is displayed, When I look at the two action buttons, Then they are visually distinct (primary action prominent, secondary action clearly secondary) and labelled in plain language
- Given the single-action layout is active, When I use a screen reader, Then focus is directed to the heading first, then the content summary, then the action buttons in order
- Given I am on a single-action screen and I press the device back button, When the system handles the input, Then I am treated as having chosen the cancel/back action and returned to the previous screen
- Given the cognitive load rule engine classifies a new screen as high-stakes, When the screen is built, Then the single-action layout template is applied automatically without manual configuration per screen
- Given I complete the action on a single-action screen, When the result is successful, Then I am returned to the normal navigation flow with the bottom nav restored
Business Value
Cognitively complex decision screens are the highest-risk point for errors by users with impairments. Removing distractions at the moment of commitment prevents accidental registrations, erroneous expense submissions, and incorrect declarations — all of which create significant administrative correction effort for coordinators and can have financial or compliance implications for the organisation.