In SAP BW/4HANA, InfoObjects are fundamental building blocks used to define characteristics (attributes) and key figures in data models. They play a critical role in organizing and managing master data and transactional data. Certain features of InfoObjects are specifically designed to optimize storage and reduce physical data redundancy. Below is a detailed explanation of the correct answers:
Explanation: A reference characteristic allows one characteristic to "reuse" the master data and attributes of another characteristic. Instead of duplicating the master data for the referencing characteristic, it simply points to the referenced characteristic's master data. This significantly reduces physical storage space by avoiding redundancy.
[: In SAP BW/4HANA, reference characteristics are commonly used when multiple characteristics share the same set of values (e.g., "Country" as a reference for "Shipping Country" and "Billing Country"). This feature aligns with SAP Data Engineer - Data Fabric principles of optimizing data storage and minimizing duplication., , Option B: Transitive attributeExplanation: A transitive attribute is an attribute that is derived from another characteristic rather than being stored directly in the master data table of the main characteristic. For example, if "City" has an attribute "Region," and "Region" has an attribute "Country," then "Country" can be defined as a transitive attribute of "City." This avoids storing the "Country" attribute redundantly in the "City" master data table, thereby reducing physical storage requirements., Reference: Transitive attributes are a key feature in SAP BW/4HANA for optimizing master data storage. By leveraging relationships between characteristics, they ensure thatonly necessary data is stored, adhering to the principles of efficient data management in SAP Data Engineer - Data Fabric., , Option C: Compounding characteristicExplanation: A compounding characteristic is used to create a hierarchical relationship between two characteristics, where one characteristic depends on another (e.g., "Street" compounded with "City"). While compounding helps organize data logically, it does not inherently reduce physical storage space. Instead, it defines how data is structured and queried., Reference: Compounding is primarily a modeling feature and does not contribute to storage optimization. Therefore, this option is incorrect., , Option D: Enhanced master data updateExplanation: The enhanced master data update mechanism improves the process of updating master data by enabling parallel processing and reducing update times. However, it does not directly reduce physical storage space. Its purpose is to enhance performance and efficiency during data updates, not to optimize storage., Reference: While enhanced master data update is a valuable feature in SAP BW/4HANA, it is unrelated to reducing physical storage space, making this option incorrect., , SummaryTo reduce physical data storage space in SAP BW/4HANA, the following features of InfoObjects are used:, Reference characteristic: Reuses master data from another characteristic, avoiding duplication., Transitive attribute: Derives attributes indirectly through relationships, minimizing redundant storage., These features align with the SAP Data Engineer - Data Fabric's focus on efficient data modeling and storage optimization., , , ]
