Step-by-step roadmap for SAP transformation in TOGAF ADM Phase F migration planning.
In large-scale ERP transformation programs centered on SAP S/4HANA, simply defining the Target Architecture is not enough to guarantee success.
What truly matters is establishing a realistic and executable path for transformation.
This is precisely the role of Phase F: Migration Planning in the TOGAF® (The Open Group Architecture Framework) Architecture Development Method (ADM).
In this article, based on TOGAF® definitions, we will examine the role of Migration Planning in SAP programs, including its objectives, outputs, expected outcomes, and the essential skills and knowledge required from an Enterprise Architecture (EA) perspective.
TOGAF® defines Phase F as follows:
“This chapter addresses migration planning; that is, how to move from the Baseline to the Target Architectures by finalizing a detailed Implementation and Migration Plan.”
In other words, Phase F is the stage where organizations define:
The key deliverable is the completion of a realistic and detailed Implementation and Migration Plan.
TOGAF® describes the primary objective of Phase F as follows:
“The objectives of Phase F are to: Finalize the Architecture Roadmap and the supporting Implementation and Migration Plan…”
Therefore, Phase F is not simply about creating a project schedule.
Its real purpose includes:
Phase F serves as the bridge between Enterprise Architecture and real-world execution.
Migration Planning is particularly critical in SAP implementations because SAP transforms multiple dimensions of the enterprise simultaneously:
As a result, a simple “system cutover plan” is insufficient.
SAP Migration Planning must integrate multiple transformation domains together.
| Area | Example |
| Business Transformation | O2C, S2P, Production, Finance, Cost Management |
| Organizational Transformation | Global Template, Local Adaptation |
| System Transformation | ECC to S/4HANA |
| Data Migration | Master Data, Transaction Data |
| Interfaces | MES, PLM, WMS, EDI |
| Governance | Change Control, Design Authority |
| Investment Management | ROI, ROIC, Business Value |
Defining the To-Be Architecture alone has little value unless the organization can determine:
the transformation should be executed.
Typical SAP rollout strategies include:
Phase F transforms these strategic concepts into executable implementation plans.
In SAP programs, organizations rarely move directly to the final architecture in a single step.
Multiple intermediate states usually exist during the transformation journey.
| Phase | State |
| Phase 1 | Finance and Procurement migrated to S/4HANA |
| Phase 2 | Production and Sales added |
| Phase 3 | Global rollout expansion |
| Phase 4 | PLM and MES integration |
These intermediate states are called Transition Architectures.
From an Enterprise Architecture perspective, business continuity, governance, and data integrity must remain stable even during these transitional phases.
Migration Planning evaluates each Work Package from multiple dimensions:
Because SAP programs involve large-scale investments, evaluation must extend beyond IT cost reduction.
It must connect directly to enterprise management KPIs such as:
TOGAF® states:
“The focus of Phase F is the creation of an Implementation and Migration Plan in co-operation with the portfolio and project managers.”
In SAP programs, close collaboration is essential with:
Without governance integration, even well-designed architectures often fail during execution.
Typical deliverables include:
For example:
These are organized into phased transformation waves.
Transition Architectures define the temporary operational and system states during the SAP journey.
This is critically important because organizations often experience situations such as:
Common examples include:
When Migration Planning is executed effectively, organizations achieve the following outcomes:
| Outcome | Description |
| Executive and IT Alignment | Investment priorities become clear |
| Executable Rollout Sequence | Wave and rollout strategies are established |
| Risk Reduction | Prevents cutover and data migration failures |
| Stronger Global Governance | Enables template governance |
| Enhanced EA and PMO Collaboration | Realizes architecture governance |
Many SAP project failures are caused not by insufficient To-Be design, but by:
In other words, the real success factor is not simply:
“What should be built?”
but rather:
“How can transformation be realistically executed in the real world?”
TOGAF® ADM Phase F: Migration Planning is the critical phase that transforms Enterprise Architecture into executable business transformation.
In SAP programs, it serves as the core mechanism for integrating:
to achieve the Target Architecture in a realistic and phased manner.
Especially in global SAP transformation programs, the quality of Migration Planning significantly influences:
Enterprise Architecture is not merely a design activity.
It is a strategic discipline for enabling enterprise transformation execution — and Phase F stands at the very center of that mission.
Please refer to this article for topics related to Enterprise Architecture (EA).
Enterprise Architecture – Insight Arc | SAP, Enterprise Architecture & Supply Chain Strategy
Parts of this article were developed with reference to generative AI suggestions and were reviewed, refined, and supplemented based on the author’s professional expertise and judgment.
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