SAP Fiori is a UI technology designed to enhance the end-user experience for all the related tools and apps that come with an SAP ERP solution.  This is important because over 70% of large businesses use an SAP ERP system. All data transmitted to or visualized by SAP Fiori is transacted in real-time and touches nearly every part of a business, such as asset management, human resources, finance, R&D, sales, supply chains, and more.

Source: ERP News