Discover how SAP's fourth-generation architecture transforms enterprise computing. This course examines SAP HANA's in-memory platform, S/4HANA's simplified business suite, and SAP Fiori's modern application framework. Students learn why HANA enables real-time analytics on transactional data, how S/4HANA reduces database footprints by 50-80%, and how Fiori Elements generates applications automatically from metadata. The course covers deployment models, Gateway service architecture, Code Push-Down paradigm, and ABAP CDS Views. Students gain comprehensive understanding of how platform capabilities, architectural simplification, and development paradigms integrate to enable the digital core for modern business operations.