What are Fiori design principles?

SAP Fiori's design language is built around five core principles guiding how every Fiori app should behave and feel, regardless of which specific business function it serves.

• Role-based — an app is tailored to what a specific user role actually needs to do, not a generic, do-everything screen.
• Responsive — the same app adapts across desktop, tablet, and mobile without separate versions.
• Simple — focused on one task at a time, avoiding the dense, all-fields-visible clutter of classical SAP GUI transactions.
• Coherent — consistent visual language and interaction patterns across every Fiori app, so learning one app transfers to others.
• Delightful — genuinely pleasant, modern UX, not merely functional.

These principles directly shape practical development decisions — for example, favoring Fiori Elements (which generates a consistent, standard UI automatically from CDS/OData metadata) over hand-built custom UIs whenever a standard pattern (list report, object page) fits, since that consistency is central to the "coherent" principle.