Introduction

Phase F of the TOGAF Architecture Development Method (ADM) focuses on migration planning, which involves finalizing a detailed Implementation and Migration Plan to move from the Baseline to the Target Architectures. This phase ensures that the plan is coordinated with the enterprise’s overall change portfolio and that key stakeholders understand the business value and cost of work packages and Transition Architectures. The following guide explains the key deliverables required to be completed within this phase and provides steps to complete them.

Deliverables

1. Architecture Roadmap

Objective: Finalize the Architecture Roadmap and the supporting Implementation and Migration Plan.

Description: The Architecture Roadmap outlines the steps, milestones, and timelines for transitioning from the Baseline to the Target Architectures. It includes detailed plans for implementing and migrating to the Target Architecture.

Steps to Complete:

  1. Review Existing Roadmap:
    • Gather Inputs: Collect all relevant inputs, including the current Architecture Roadmap, Implementation and Migration Plan, and any updates from previous phases.
    • Analyze Current Roadmap: Evaluate the existing roadmap to identify any gaps or areas that need revision.
  2. Update Roadmap:
    • Identify Changes: Determine any changes required based on the latest information and feedback from stakeholders.
    • Incorporate Changes: Update the roadmap to include the identified changes.
    • Document Changes: Clearly document the changes made to the roadmap.
  3. Finalize Roadmap:
    • Review and Validate: Ensure that the updated roadmap is complete, accurate, and aligned with business goals.
    • Get Approval: Present the finalized Architecture Roadmap to stakeholders and obtain approval.
    • Communicate Roadmap: Share the finalized Architecture Roadmap with the Enterprise Architecture team and other relevant stakeholders.

2. Implementation and Migration Plan

Objective: Develop a detailed plan for implementing and migrating to the Target Architecture.

Description: The Implementation and Migration Plan outlines the steps, resources, and timelines for implementing and migrating to the Target Architecture. It includes detailed plans for each work package and Transition Architecture.

Steps to Complete:

  1. Identify Work Packages:
    • Define Work Packages: Determine the work packages required to implement and migrate to the Target Architecture.
    • Prioritize Work Packages: Assign priorities to the work packages based on their importance and impact.
  2. Develop Detailed Plan:
    • Identify Steps: Determine the steps required for each work package.
    • Assign Resources: Determine the resources required for each step and assign them accordingly.
    • Develop Timeline: Create a timeline for each work package, including start and end dates for each step.
  3. Document Plan:
    • Create Plan Document: Create a formal Implementation and Migration Plan document.
    • Review Plan: Ensure that the plan is complete, accurate, and aligned with business goals.
    • Get Approval: Present the Implementation and Migration Plan to stakeholders and obtain approval.
  4. Communicate Plan: Share the Implementation and Migration Plan with the Enterprise Architecture team and other relevant stakeholders.

3. Transition Architecture

Objective: Define any intermediate architectures (Transition Architectures) required to move from the Baseline to the Target Architecture.

Description: Transition Architectures are intermediate architectures that provide continuous business value during the transition to the Target Architecture.

Steps to Complete:

  1. Identify Transition Architectures:
    • Define Intermediate States: Determine any intermediate states required to move from the Baseline to the Target Architecture.
    • Document Transition Architectures: Create detailed descriptions of the Transition Architectures.
  2. Review Transition Architectures:
    • Ensure Completeness: Ensure that the Transition Architectures are complete, accurate, and aligned with business goals.
    • Get Approval: Present the Transition Architectures to stakeholders and obtain approval.
  3. Communicate Transition Architectures: Share the Transition Architectures with the Enterprise Architecture team and other relevant stakeholders.

4. Implementation Governance Model

Objective: Develop a governance model for overseeing the implementation of the architecture.

Description: The Implementation Governance Model is a framework for overseeing the implementation of the architecture, ensuring compliance with the architecture principles and standards.

Steps to Complete:

  1. Define Governance Framework:
    • Identify Roles and Responsibilities: Determine the roles and responsibilities for overseeing the implementation.
    • Develop Governance Processes: Create processes for monitoring and controlling the implementation.
    • Develop Compliance Metrics: Define metrics for measuring compliance with the architecture principles and standards.
  2. Document Governance Model:
    • Create Governance Model Document: Create a formal Implementation Governance Model document.
    • Review Governance Model: Ensure that the governance model is complete, accurate, and aligned with business goals.
    • Get Approval: Present the Implementation Governance Model to stakeholders and obtain approval.
  3. Communicate Governance Model: Share the Implementation Governance Model with the Enterprise Architecture team and other relevant stakeholders.

Key Concepts

  • Architecture Roadmap: A strategic plan outlining the steps, milestones, and timelines for transitioning from the Baseline to the Target Architectures.
  • Implementation and Migration Plan: A detailed plan outlining the steps, resources, and timelines for implementing and migrating to the Target Architecture.
  • Transition Architecture: Intermediate architectures that provide continuous business value during the transition to the Target Architecture.
  • Implementation Governance Model: A framework for overseeing the implementation of the architecture, ensuring compliance with the architecture principles and standards.

Conclusion

Phase F of the TOGAF ADM is crucial for finalizing the migration plan and ensuring a smooth transition from the Baseline to the Target Architectures. By completing the key deliverables—Architecture Roadmap, Implementation and Migration Plan, Transition Architecture, and Implementation Governance Model—organizations can ensure that their architecture implementation is aligned with business goals and strategic drivers. This phase sets the foundation for successful architecture development and deployment, driving business value and transformation.

References

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