What are the reasons for implementing Composite Providers?

[: In SAP BW/4HANA, Composite Providers allow users to define whether the data should be persisted or remain virtual. This flexibility supports both real-time reporting and optimized batch processing scenarios., , Option B: To directly expose an SAP HANA table from an external schemaExplanation: This option is incorrect because Composite Providers are not designed to directly expose SAP HANA tables from external schemas. Instead, they focus on combining data from BW objects or other sources within the BW/4HANA environment. If you need to expose an external HANA table, you would typically use Open ODS views or other integration mechanisms., Reference: SAP documentation emphasizes that Composite Providers are primarily used for combining BW models rather than exposing external HANA tables., , Option C: To provide an interface for using BW queriesExplanation: This option is incorrect because Composite Providers themselves do not directly provide an interface for BW queries. Instead, BW queries are built on top of InfoProviders, including Composite Providers. The role of a Composite Provider is to combine data, while BW queries are used to define the analytical logic and presentation layer., Reference: According to SAP Data Engineer - Data Fabric guidelines, BW queries are created separately and consume the data exposed by Composite Providers or other InfoProviders., , Option D: To provide a virtual data mart layer that combines existing BW modelsExplanation: One of the primary purposes of Composite Providers is to create a virtual data mart layer. This allows users to combine existing BW models (e.g., InfoCubes, DataStore Objects, Open ODS views) without physically moving or duplicating data. By leveraging virtualization, Composite Providers enable real-time access to data while maintaining flexibility and reducing redundancy., Reference: SAP BW/4HANA promotes the use of Composite Providers as part of its virtual data modeling capabilities, aligning with the principles of SAP Data Fabric to integrate and harmonize data across diverse sources., U]