Insight · TOGAF

TOGAF Phase A: Architecture Vision in Sparx EA — Artifacts, Stakeholders and Outputs

Most practitioners treat TOGAF Phase A — Architecture Vision — as an administrative hurdle to clear before the "real" work starts. That framing is exactly why so many enterprise architecture programs drift into scope creep, stakeholder conflict, and inconclusive outputs. Phase A establishes the scope of work and gains formal approval to proceed. Without it, every later deliverable is open to the question: "Who agreed we were solving this problem? Who authorized this scope?"

What this covers

  • The five formal Phase A outputs — the Architecture Vision, Statement of Architecture Work, outline ADD, roadmap stub, and Communication Plan — and what each is for.
  • How to capture Phase A in Sparx EA's motivation layer as live model elements rather than attached documents.
  • What the Architecture Review Board actually reviews and approves at Phase A.
  • The single most common Phase A mistake — and why it quietly wastes months of effort.

What Phase A actually produces

Phase A establishes the architectural scope of work and gains formal approval to proceed. Treating it as a document to get signed so you can start "real" architecture work is the framing that leads to scope creep and inconclusive outputs. The five formal outputs are:

Architecture Vision document. A high-level description of what the target architecture will achieve, why the initiative exists, and what business value it delivers. Written for executives and sponsors, not architects. Typically 5–15 pages, and generated from model elements rather than authored independently of the model.

Statement of Architecture Work (SoAW). The formal contract between the architecture team and the sponsor: scope, timelines, resources, constraints, and sign-off criteria. This is the document the ARB approves. In Sparx EA, the SoAW references model packages by GUID so there is no ambiguity about what is in scope.

Architecture Definition Document (ADD) outline. Phase A does not complete the ADD — it creates the structure, sections, and metadata. The ADD is populated across Phases B, C, and D. In Sparx EA, this is the top-level package hierarchy with placeholder diagrams.

Architecture Roadmap stub. High-level milestones only, no work packages yet — the roadmap is populated during Phase E. The stub keeps the timeline assumptions visible to executives traceable to actual architecture decisions rather than invented after the fact.

Communication Plan. Who receives what artifact, at what cadence, in what format. Architects routinely skip this and then wonder why stakeholders are surprised by Phase B outputs.

Capturing Phase A in Sparx EA

Sparx EA's motivation layer is purpose-built for Phase A. Do not store Phase A outputs as attached documents — model them. The sequence below turns the motivation package into a single reviewable view.

1

Model drivers, goals and principles

Create a Motivation package under your architecture root. Add Driver elements for each business driver (for example, "Regulatory compliance — APRA CPS 230"), Goal elements linked to drivers with Influence relationships, and Principle elements with rationale and implications in tagged values.

2

Register the stakeholders

Model each stakeholder as an ArchiMate Stakeholder element, capturing role, concerns, and communication preference in tagged values. This stakeholder register feeds directly into the Communication Plan.

3

Build the motivation viewpoint

From the motivation package, create a Motivation viewpoint diagram showing the stakeholder–goal–principle–driver relationships. This is the single diagram you present at Phase A ARB review — it fits on one slide and tells the whole story.

4

Seed the requirements package

Seed a Requirements package with the high-level constraints and assumptions captured in stakeholder interviews — the boundary conditions on the architecture, not detailed functional requirements. Tag each with source, status (confirmed/assumed), and phase.

This is not busywork. A structured motivation layer is what lets later queries against the model answer "what business goals does this application serve?" without that answer being locked in a PDF.

Who approves Phase A outputs

The Architecture Review Board approves the Statement of Architecture Work before Phase B begins. In most organizations the ARB is chaired by the Chief Architect or CTO and includes senior business representatives, IT leadership, and security. At Phase A, the ARB reviews:

  • Is the scope clearly bounded and agreed by sponsors?
  • Are the business drivers documented and validated?
  • Are the architecture principles correct and complete?
  • Is the SoAW achievable within the proposed timeline and resource?

The ARB does not review technical detail at Phase A — there is none yet. They are approving the mandate to do the work. If your organization does not have a functioning ARB, Phase A is where you establish one; Configure the Solution includes ARB charter development and facilitation design as a standard deliverable.

The most common Phase A mistake

Skipping Phase A and going straight to current-state mapping. This is the most common mistake in enterprise architecture programs, and it is almost always rationalized as "we need to understand where we are before we can say where we're going."

The problem is not the current-state mapping — it is doing it without an agreed scope, an approved problem statement, or stakeholder sign-off on what questions the architecture is supposed to answer. The result is a beautiful current-state model that no one asked for, answering questions the business did not prioritize, and consuming months before anyone asks: "What decision does this enable?"

Phase A forces that question first. The Statement of Architecture Work is literally a contract that says "we will answer these questions, for these stakeholders, by this date, to enable these decisions."

How Phase A outputs pay off later

When you model Phase A correctly in Sparx EA, the motivation layer becomes queryable rather than buried in a Word file. Practical questions a structured model can answer:

  • "What business drivers are not yet addressed by any architecture initiative?"
  • "Which stakeholders have concerns that are not mapped to any goal?"
  • "Which architecture principles have no associated design decisions?"
  • "Summarize the architecture scope approved in the current Statement of Architecture Work."

None of these work if Phase A lives in a Word document on a SharePoint site. They work when Phase A is in the model, structured, and tagged — whether you query it directly, through a report, or with an AI assistant that can read the repository.

Frequently asked questions

How long should Phase A take?

For a well-bounded initiative with engaged sponsors, two to four weeks. For a program-level engagement with a complex stakeholder landscape, four to eight weeks. Phase A should not take longer than ten percent of the total program timeline. If it is taking longer, scope is not agreed — which is itself a governance problem Phase A should surface.

Does Sparx EA have a TOGAF ADM template?

Yes. Sparx EA ships with a TOGAF ADM framework that includes pre-built packages for each phase, standard ArchiMate viewpoints, and a catalog of TOGAF-aligned element stereotypes. The MDG Technology for TOGAF extends this with additional tagged values and diagram types. Contact us if you need help configuring the baseline.

What is the difference between the Architecture Vision and the Architecture Definition Document?

The Architecture Vision is a high-level executive summary of what the target architecture achieves and why. The ADD is the detailed technical specification built across Phases B, C, and D. The Vision is typically 5–15 pages; the ADD can run to hundreds of pages for complex programs. The Vision is approved in Phase A; the ADD is approved in Phase E before migration planning.

Who should attend stakeholder interviews for Phase A?

Business sponsors, capability owners, and the CIO or equivalent technology executive at minimum. Also include the chief risk officer and compliance team if the driver is regulatory. Avoid inviting only technical staff — Phase A stakeholder interviews should surface business concerns, not technical preferences.

Can we run Phases A and B in parallel to save time?

No. Phase B scope depends on Phase A scope approval. Running them in parallel means Phase B work may be invalidated when the ARB modifies the Phase A scope, and the apparent time saving becomes a rework cost. If the timeline is genuinely constrained, narrow the Phase A scope rather than skipping the approval gate.

How does the Communication Plan actually work in practice?

At minimum it defines: stakeholder group, what they receive, in what format, at what cadence, and who is responsible. For example: "Executive sponsor — Architecture Vision summary — slides — monthly — Chief Architect." In Sparx EA, communication artifacts can be generated from model views so the plan is delivered from a live source, not maintained separately.

Where Sparx Services fits

If your architecture program lacks a functioning Phase A process — no formal SoAW, no ARB approval gate, no stakeholder register in the model — Paralysis to a Plan is the right starting point. We audit your current EA practice, identify governance gaps, and deliver a recommended architecture operating model including Phase A process design.

If you have Phase A in place but want to build out the full TOGAF ADM practice across all phases with Sparx EA as the single source of truth, Configure the Solution delivers the framework, templates, and team uplift to make that happen.

No SoAW, no approval gate, no stakeholder register?

Talk to a practitioner about a model-based Phase A in Sparx EA — drivers, principles, and a one-slide motivation viewpoint your ARB can actually approve.

Book a call →