Which statement best describes Extensible Dimensionality?

• A. Extensions are done on Base-level Members from the inherited Dimension only.
• B. Members can be extended at any level without inheritance.
• C. Extensibility does not apply to Time dimension.
• D. Horizontal Extensibility allows sharing across Entities.

Answer: (A)

Extensible Dimensionality centers on adding new members by extending the base-level members of a dimension that is inherited by others. This approach ensures the new member is incorporated consistently across all derived dimensions because the inheritance path carries the change. The extension must occur on base-level members from the inherited dimension, since this is the point where the hierarchy and inheritance linkages are defined. Extending at other levels or outside this base-inherited structure would break that linkage and lead to inconsistencies. Time-related dimensions and concepts like horizontal extensibility relate to different aspects of dimensional design, so they’re not the mechanism described by Extensible Dimensionality.