The SAP Clean Core strategy is a systematic approach to building, maintaining, and running SAP S/4HANA systems to ensure they remain as close to the standard as possible, facilitating easier upgrades and innovation. This approach is structured around several key dimensions. The most critical technical dimensions are Data, ensuring data quality and consistent governance; Integrations, using standard, decoupled APIs for communication with other systems; and Extensions, utilizing modern, cloud-ready methods for customizations instead of modifying the core application code. These pillars ensure the system remains agile, stable, and cost-effective to maintain.

B. Procedures: While adopting standard business processes (Procedures) is a key goal and a recognized dimension of clean core, the technical implementation of any required process deviations is managed under the "Extensions" dimension.

C. Technologies: Technologies, such as the SAP Business Technology Platform (BTP), are the enablers or tools used to implement the clean core strategy, not a dimension of the strategy itself.

1. SAP Whitepaper: "Clean Core for SAP S/4HANA Cloud, private edition, and SAP S/4HANA," Version 2.0, October 2023.

Page 6, Figure 2: This document explicitly outlines the "five dimensions of a clean core," which include Processes, Data, Extensions, Integrations, and Operations. The options A, D, and E are directly listed as three of these core dimensions.

2. SAP Help Portal: SAP S/4HANA Cloud, Extensibility Guide.

Section: "Extensibility Concept": This guide details the approved methods for extending the system (in-app and side-by-side), which is the practical application of the "Extensions" dimension, a cornerstone of the clean core principle.

3. SAP Activate Roadmap Viewer: SAP Activate Methodology for SAP S/4HANA Cloud.

Content Area: "Design and Configuration": Deliverables within this phase, such as "Fit-to-Standard Analysis" and "Integration Design and Configuration," directly address the dimensions of Procedures, Integrations, and Extensions, confirming their central role in a standard, clean-core-compliant implementation. The management of data is also a critical workstream throughout the methodology.