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Extensibility Strategy
A comprehensive architect-level exploration of Extensibility Strategy across ECC, S/4HANA (on-premise, private cloud, public cloud) and BTP, covering clean core principles, extension classification, decision frameworks, governance, and lifecycle implications for choosing where and how to extend SAP systems safely and sustainably.
Overview
A comprehensive architect-level exploration of Extensibility Strategy across ECC, S/4HANA (on-premise, private cloud, public cloud) and BTP, covering clean core principles, extension classification, decision frameworks, governance, and lifecycle implications for choosing where and how to extend SAP systems safely and sustainably.
Lessons in this topic
- Governing Extensibility Security, Lifecycle, and Rollback Across a Hybrid LandscapeAn advanced treatment of the non-functional dimensions of extensibility strategy: security boundaries, lifecycle governance, rollback planning, and operational ownership across ECC-to-S/4HANA and BTP hybrid landscapes.
- Classifying Extension Types: In-App, Developer, and Side-by-Side Trade-offsProvides a structured framework for evaluating in-app, developer, and side-by-side extensibility options against requirement characteristics, deployment model constraints, and long-term maintenance cost.
- Choosing Between In-App and Side-by-Side Extensibility for a Given RequirementA practical decision framework for routing a specific extension requirement to in-app key user tools, developer extensibility, or side-by-side BTP extensions, based on data locality, complexity, and lifecycle needs.
- Why Extensibility Strategy Matters: Foundations and Business DriversIntroduces what extensibility strategy means at an architectural level, why organizations need a deliberate approach, and the core tension between customization speed and long-term upgradability.
- Extensibility Roadmap Governance: Cost, Operations, and Continuous Fit-to-StandardArchitect-level guidance on running extensibility as a governed, cost-aware, continuously reviewed program rather than a one-time technical decision, covering TCO drivers, operating model, monitoring, and roadmap alignment with SAP release cycles.