TOGAF ADM Lifecycle

Introduction Key Concepts ADM Phases Best Practices FAQ

1. Introduction

The TOGAF (The Open Group Architecture Framework) ADM (Architecture Development Method) is a proven methodology and framework used to develop and manage enterprise architecture. The ADM provides a structured approach to managing the lifecycle of an architecture, ensuring that it is aligned with business goals and objectives.

2. Key Concepts

Enterprise Architecture: The process of translating business vision and strategy into effective enterprise change by creating, communicating, and improving the key principles and models that describe the enterprise’s future state.
Architecture Development Method (ADM): A step-by-step approach to developing an enterprise architecture.
Architecture Repository: A structured framework for managing architectural artifacts and deliverables.

3. ADM Phases

Phases Overview

Preliminary Phase: Prepare the organization for the architecture project.
Phase A - Architecture Vision: Define the scope and objectives of the architecture initiative.
Phase B - Business Architecture: Develop the business architecture that supports the architecture vision.
Phase C - Information Systems Architectures: Develop the data and application architectures.
Phase D - Technology Architecture: Define the technology architecture.
Phase E - Opportunities & Solutions: Identify and evaluate opportunities for implementation.
Phase F - Migration Planning: Create a detailed implementation and migration plan.
Phase G - Implementation Governance: Ensure compliance and governance of the architecture during implementation.
Phase H - Architecture Change Management: Manage changes to the architecture throughout its lifecycle.

ADM Cycle


graph TD;
    A[Preliminary Phase] --> B[Phase A: Architecture Vision]
    B --> C[Phase B: Business Architecture]
    C --> D[Phase C: Information Systems Architectures]
    D --> E[Phase D: Technology Architecture]
    E --> F[Phase E: Opportunities & Solutions]
    F --> G[Phase F: Migration Planning]
    G --> H[Phase G: Implementation Governance]
    H --> I[Phase H: Architecture Change Management]
    I --> A

Note: Each phase is interrelated, with outputs from one phase feeding into the next. Regular reviews and iterations are essential for success.

4. Best Practices

Engage stakeholders early and often for buy-in and feedback.
Maintain documentation to ensure continuity and knowledge transfer.
Use a governance framework to manage architecture changes effectively.
Leverage existing architecture models to reduce redundancy.
Conduct regular training sessions to keep stakeholders updated.

5. FAQ

What is the TOGAF ADM Lifecycle?

The TOGAF ADM Lifecycle is a structured approach to developing and managing enterprise architecture, consisting of several phases that guide the architecture development process from inception to completion.

How often should the ADM be revisited?

The ADM should be revisited regularly, especially during major organizational changes, to ensure that the architecture remains aligned with business goals and objectives.

What are the key outputs of each ADM phase?

Each phase has specific outputs such as architecture vision documents, architecture models, and migration plans that contribute to the overall architecture.