Final answer:
SAP S/4HANA uses a columnar data model thanks to the underlying SAP HANA database, providing faster data retrieval and real-time analytics for businesses.
Step-by-step explanation:
The data model used for SAP S/4HANA is the columnar model. SAP S/4HANA leverages the advanced capabilities of the SAP HANA database, which is fundamentally different from traditional row-oriented databases. In a columnar database, data is stored in columns rather than in rows, which allows for faster data retrieval and analysis, making it particularly beneficial for processing large volumes of data and running complex queries. This column-oriented approach enables SAP S/4HANA to perform real-time analytics and transactions, providing businesses with insights into their operations instantaneously.