Architecture Vision Document

Purpose

The Architecture Vision creates alignment between stakeholders on what the architecture engagement will achieve. It secures buy-in for the architecture work, defines scope and constraints, and provides the basis for detailed architecture development in subsequent TOGAF phases.

When to Use

Create at the start of an architecture engagement (TOGAF Phase A). It precedes detailed architecture development and serves as the mandate for the architecture team to proceed with their work.

How to Build

Start with the business context: what strategic objectives drive this architecture work? What problems need solving? What opportunities exist?

Define the scope of the architecture engagement: what is included and excluded? Which domains (business, data, application, technology) will be addressed?

Identify key stakeholders and their concerns. Map concerns to architecture views that will address them.

Articulate the target architecture at a high level — enough to communicate the vision without detailed design. Use diagrams to show the conceptual future state.

Define the value proposition: what benefits will the target architecture deliver? How will success be measured?

Tips

Keep it visionary but grounded — the vision should be aspirational yet achievable.
Focus on business value, not technical elegance — stakeholders care about outcomes.
Identify and address key stakeholder concerns explicitly.
Use the vision to secure mandate and resources for detailed architecture work.
Keep it concise — this is a vision, not a detailed architecture document.

Common Mistakes

Making the vision too detailed — it should inspire direction, not prescribe implementation.
Not linking the architecture vision to business strategy and outcomes.
Ignoring stakeholder concerns that will surface later and derail the work.
Not defining scope clearly, leading to scope creep in the architecture engagement.
Writing the vision without stakeholder input, reducing buy-in.

Government Context

In UK government, the Architecture Vision should align with the Government Digital Strategy, departmental transformation plans, and the Technology Code of Practice. It should reference cross-government architecture principles and shared platforms. For major programmes, the vision supports the strategic case in the business case and informs IPA gateway reviews.