The document discusses how to start the transformation to SAP S/4HANA now using the new SAP Fiori programming model. It introduces the new Fiori programming model and the principle of one toolchain. It describes the roots of the Business Object Processing Framework (BOPF) and how to model applications with BOPF artifacts like business objects, properties, validations and actions. It provides resources like blogs and podcasts to learn more about BOPF and recommends starting now with the new programming model.