Layer Architecture of a Data Warehouses with SAP HANA Database (LSA++)

By using an SAP HANA database as your database for SAP NetWeaver Business Warehouse (BW), you have greater flexibility and more possibilities to achieve your requirements. A new, integrated layer architecture (LSA++) is required to depict a system with different approaches in BI, their persistency layers and virtual data marts.

The flexible, consistent core of the EDW remains in place. In the LSA++, special services for operational, flexible data are added to the core. The main differences to the LSA are:

• Queries on DataStore objects are just as fast as on InfoCubes. Therefore queries can be directly defined on the data propagation layer. You do not need an explicit reporting layer.

• You can define virtual data marts by using CompositeProviders that combine InfoProviders.

• Using special VirtualProviders and TransientProviders, you can access data directly in the SAP HANA database, to allow queries on the data.