Migration Architecture
Migration Architecture covers the end-to-end design decisions for moving from ECC to S/4HANA (on-premise, private cloud, or public cloud), including migration approach selection, data and integration strategy, NFRs, security, rollback planning, governance, and operational readiness. It equips architects to evaluate trade-offs across brownfield, greenfield, and hybrid (selective data transition) approaches and to build defensible, risk-managed transformation roadmaps.
Overview
Migration Architecture covers the end-to-end design decisions for moving from ECC to S/4HANA (on-premise, private cloud, or public cloud), including migration approach selection, data and integration strategy, NFRs, security, rollback planning, governance, and operational readiness. It equips architects to evaluate trade-offs across brownfield, greenfield, and hybrid (selective data transition) approaches and to build defensible, risk-managed transformation roadmaps.
Lessons in this topic
- Foundations of Migration Architecture: Why the Approach Decision MattersIntroduces the business and technical purpose of migration architecture and the three core approaches (greenfield, brownfield, hybrid/selective data transition) used when moving from ECC to S/4HANA.
- Selecting and Implementing a Data Migration Approach: Conversion, New Implementation, and Selective Data TransitionHow to choose between system conversion, new implementation, and selective data transition for an S/4HANA move, and what the technical execution of each approach actually involves.
- Cutover Architecture, Mock Runs, and Rollback Strategy for S/4HANA Migration ProgramsHow to architect the cutover sequence, mock run program, and rollback decision framework for a large-scale ECC to S/4HANA migration, balancing downtime, risk, and business continuity.
- Post-Migration Operating Model, Cost Governance, and Roadmap EvolutionHow architects design the operating model, cost governance, and multi-year roadmap that keep an S/4HANA migration architecture sustainable after go-live.
- Comparing Migration Approaches: Trade-offs, Data Volume, and Deployment FitExplores the practical trade-offs between greenfield, brownfield, and selective data transition approaches, focusing on data volume, downtime, custom code, and deployment model constraints.