SAP Fiori is the design language that brings great user experiences to enterprise applications based on SAP User Experience. It works seamlessly on desktops, tablets, and smartphones.
SAP Fiori Dimensions
The three dimensions in which SAP Fiori is defined are design, principles, and technology. In each dimension, rules and guidelines from optic, handling, interactions, and architectures to technologies in development and the system landscape are in place to define what SAP Fiori really is.