About this article
As the sixth installment (final) of the âEnterprise Architectureâ category in the series âArchitecture Crash Course for the Generative-AI Era,â this article explains EA frameworks.
Frameworks are not used as is - the iron rule is tailoring to your company, with companies âfully applying TOGAFâ being a minority. This article covers comparisons of TOGAF/Zachman/FEAF/DoDAF, TOGAF ADM Phase A-H, the realistic answer of narrowing to Phase A-B-D, and operations not ending as picture exhibitions.
What is an EA framework in the first place
Think of a recipe book for cooking. An experienced chefâs procedures and measurements, refined over decades, are systematically compiled. Rather than reinventing everything from scratch through trial and error, borrowing predecessorsâ wisdom is overwhelmingly more efficient.
EA frameworks (TOGAF, Zachman, etc.) are sets of procedures, glossaries, and output templates for designing enterprise-wide IT strategy. Theyâre packed with decades of practical knowledge, and you customize (Tailor) them to fit your company.
If you proceed with EA without a framework, you end up starting from term definitions, and discussions spin in circles without a common language among stakeholders.
Why EA frameworks are needed
Building methodology from scratch breaks down
EAâs scope is too wide to proceed empirically. Borrowing predecessorsâ wisdom is more efficient, with existing frameworks packed with decades of practical knowledge.
Standardizing terminology and outputs
Even saying âarchitecture documentâ among stakeholders, meanings vary. Having common terminology and output names efficiently scales discussions.
Linkage with certifications
Certifications like TOGAF Certified objectively evaluate architectsâ capabilities. Usable for hiring / placement decisions too.
Main framework list
Multiple EA frameworks exist, with different uses and emphases. No need to narrow to one - selecting from multiple is the modern usage.
| Framework | Characteristics | Position |
|---|---|---|
| TOGAF | Methodology-centric, most adopted | Industry standard |
| Zachman Framework | Taxonomic, classic | For thought organization |
| FEAF | For US federal government | Used in government systems |
| DoDAF | For US Department of Defense | Military, aerospace |
| ArchiMate | Modeling language | Standard for diagrams |
| BIAN | Banking-industry-specialized | Financial industry |
TOGAF
Acronym for The Open Group Architecture Framework, the de facto industry standard. First published in 1995, with TOGAF 10 (released 2022) the latest. ADM (Architecture Development Method), the phased approach, is the core.
| TOGAF major elements | Content |
|---|---|
| ADM (methodology) | Proceed EA in 8 phases |
| Architecture Content Framework | Output definitions |
| Enterprise Continuum | Reference-model collection |
| Reference Models | Industry-specific templates |
| Capability Framework | Org capability definitions |
There are TOGAF certifications (Foundation / Certified) - the standard certification for EA roles, recognized worldwide.
ADM (Architecture Development Method)
The core of TOGAF, the 8 phases proceeding EA in stages. The design philosophy is iterating Phase A â H, continuously maturing EA.
flowchart TB
PRE[Preliminary<br/>preparation, principles]
A[A. Architecture Vision<br/>target image]
B[B. Business<br/>BA design]
C[C. Information Systems<br/>DA/AA design]
D[D. Technology<br/>TA design]
E[E. Opportunities<br/>implementation opportunities]
F[F. Migration<br/>migration plan]
G[G. Implementation<br/>implementation governance]
H[H. Change Management<br/>change management]
REQ((Requirements management<br/>central))
PRE --> A --> B --> C --> D --> E --> F --> G --> H
H -.iterate.-> A
REQ -.- A
REQ -.- B
REQ -.- C
REQ -.- D
REQ -.- E
REQ -.- F
REQ -.- G
REQ -.- H
classDef pre fill:#fef3c7,stroke:#d97706;
classDef phase fill:#dbeafe,stroke:#2563eb;
classDef req fill:#fae8ff,stroke:#a21caf,stroke-width:2px;
class PRE pre;
class A,B,C,D,E,F,G,H phase;
class REQ req;
What to grasp here is that ADM is not waterfall passing through once top to bottom. With phase names lined up in order, easily misunderstood as âprocess going through A to H in order,â but the reality is an iterative approach moving back and forth between phases. Returning to fix vision (Phase A) when flaws are found in Phase B (BA), redrawing Phase C (DA/AA) from constraints visible in Phase D (TA) - such round-trips are built into the premise. In practice, no need to do all Phase A-H from the start - the practical pattern of starting from a specific phase is also general. For existing-system cloud migration, start from Phase D (TA); for business reform, enter from Phase B (BA) - choosing the entry per challenge is the key to actually running TOGAF.
| Phase | Content |
|---|---|
| Preliminary | Preparation, principles |
| A. Architecture Vision | Target image, scope setting |
| B. Business Architecture | BA design |
| C. Information Systems | DA / AA design |
| D. Technology Architecture | TA design |
| E. Opportunities & Solutions | Identify implementation opportunities |
| F. Migration Planning | Migration plan |
| G. Implementation Governance | Implementation control |
| H. Architecture Change Management | Change management |
âStarting from Phase Bâ is also possible, with flexibility to adapt per situation.
Zachman Framework
A taxonomic-approach framework. Proposed by John Zachman in 1987, drawing a 6x6 matrix crossing â6 questions (What/How/Where/Who/When/Why)â with â6 perspectives (executive / manager / designer / developer / implementer / user).â
| Axis | Content |
|---|---|
| What | Data |
| How | Function |
| Where | Location |
| Who | People, organization |
| When | Time, process |
| Why | Purpose, strategy |
Not a methodology but a taxonomy, used as a thinking tool for organizing EAâs whole picture. Co-usable with TOGAF.
ArchiMate
The modeling language for drawing EA as diagrams, formulated by The Open Group. Fully aligned with TOGAF, widely used as the standard EA notation.
| Layer | Content |
|---|---|
| Strategy | Strategy, goals |
| Business | Business processes, services |
| Application | Apps, components |
| Technology | Physical foundation |
| Physical | Equipment, facilities |
| Implementation & Migration | Migration plans |
Tools: Archi (OSS), BiZZdesign Horizzon (commercial), Sparx EA. Drawing tools are abundant, getting diagram consistency.
FEAF / DoDAF
Frameworks for US government. Less used in Japan, but useful when handling government systems / military-related, for reference.
| Framework | Use |
|---|---|
| FEAF | US federal government agencies |
| DoDAF | US Department of Defense |
| MODAF | UK Ministry of Defence |
| TEAF | US Department of the Treasury |
Built-in security and interoperability requirements are the feature, with applicable know-how for large-scale-org EA.
BIAN (industry-specialized)
The framework specialized for banking. Acronym for Banking Industry Architecture Network, providing reference models standardizing banking business capabilities.
| Provided | Content |
|---|---|
| Service Landscape | Map of banking-business services |
| Business Capabilities | 300+ standard capabilities |
| Reference Scenarios | Business scenarios |
| API Standards | Banking API standards |
Beyond financial industry, industry-specialized frameworks (insurance, telecom, medical, etc.) exist, leveraging accumulated industry knowledge.
Framework selection
Which framework to use is decided by purpose, industry, org maturity. Realistic to combine multiple, not single selection.
| Purpose | Recommended |
|---|---|
| First EA | TOGAF Lite |
| Organize whole picture | Zachman thinking tool |
| Diagram / visualize | ArchiMate |
| Industry-standard utilization | Industry-specialized like BIAN |
| Government | FEAF / DoDAF |
âBase on TOGAF, draw with ArchiMateâ is a frequent pattern.
Reality of framework utilization
Frameworks arenât omnipotent - pitfalls are also many. âPerfectly running all TOGAF phasesâ leading to no progress in 3 years is a typical failure.
| Pitfall | Countermeasure |
|---|---|
| Framework fundamentalism | Select / Tailor |
| Output creation as goal | Use for decisions |
| Field divergence | Practice per project |
| Learning cost | Common minimum via TOGAF certification |
| Outdated | Combine with agile EA |
Creating outputs themselves isnât value - value emerges only when used in decisions.
Agile EA
Traditional EA is plan-focused with large-scale design but canât keep up with modern change speed. The thinking of proceeding EA agile-style is spreading.
| Traditional EA | Agile EA |
|---|---|
| 3-year plan | Quarterly review |
| Perfect model | Sufficient model |
| Top-down | Collaborate with each team |
| Output-focused | Decision-focused |
| Centralized | Distributed, community |
Operations combining with SAFe (Scaled Agile Framework) or Team Topologies are increasing.
Decision criterion 1: org maturity
Approach varies with org maturity introducing EA. Inexperienced - simple; mature - full-fledged.
| Maturity | Recommended |
|---|---|
| EA inexperienced | Learn TOGAF Foundation |
| Initial introduction | TOGAF Lite + ArchiMate |
| Years of operation | Full TOGAF + industry-specialized |
| Global large enterprise | Custom + multiple frameworks |
Decision criterion 2: regulatory requirements
For strictly-regulated industries like government / finance / medical, certifications may be demanded.
| Industry | Possibly demanded |
|---|---|
| Government projects | TOGAF Certified |
| Finance | BIAN, industry standards |
| US military-related | DoDAF |
| Medical | HL7 (medical-info exchange standard), HIMSS (medical-info-management maturity assessment) |
How to choose by case
EA first introduction / small enterprise
TOGAF Foundation learning + Archi (OSS) for ArchiMate diagrams. Use Zachman just for thought organization, donât run all ADM phases - narrow to Phase A-B-D. 1-2 architects part-time, quarterly review enough.
Mid-size enterprise / has EA org
TOGAF ADM-based + ArchiMate + Confluence / Sparx EA + agile EA. Dedicated 3-5 EA, tailored template ops, link with Technology Radar, combine with SAFe / Team Topologies. Recommend TOGAF Certified acquisition.
Finance / banking industry
TOGAF + BIAN + ArchiMate + FISC-compliant. Build companyâs own capabilities based on BIAN Service Landscape, regime auto-generating regulator-explanation materials. API standards also BIAN-compliant.
Government / defense
DoDAF / FEAF + security-requirement integration. Military-related requires DoDAF views (OV / SV / TV), incorporating interoperability and confidentiality classifications into models. TOGAF Certified + domestic certifications (IPA etc.) often demanded.
Phased EA-framework-utilization roadmap
The iron rule for frameworks is phased introduction. Suddenly applying everything breaks down.
| Phase | Period | Utilization scope | Investment people |
|---|---|---|---|
| 1. Learning | 3-6 months | Acquire TOGAF Foundation, understand Zachman | 1-2 |
| 2. Lite introduction | 6-12 months | Only TOGAF Phase A-D, ArchiMate drawing | EA 1-2 |
| 3. Periodic operation | 1-2 years | All TOGAF ADM phases + quarterly review | EA team 3-5 |
| 4. Industry-specialized | 2 years+ | Co-use industry FW like BIAN / DoDAF | Dedicated EA org |
| 5. EA as Code | Continuous | ArchiMate + Git + API publication, AI integration | Under CTO |
The realistic Tailoring is narrowing to âonly Phase A-B-D.â The case of a year and half stuck in Phase B is typical failure - âTOGAF full applicationâ doesnât reach the field even after 3 years.
Use frameworks as entry, not procedure manual. Without Tailoring, you definitely exhaust.
EA-framework-operation pitfalls and forbidden moves
Typical accidents in EA-framework operation. All are patterns of drawing and done, not used in decisions.
| Forbidden move | Why itâs bad |
|---|---|
| Fully apply TOGAF ADM Phase A through H | A year and half stuck in Phase B, 300-page capability map leaves field behind |
| Use frameworks as procedure manuals | Fundamentalist rigidity, miss transformation opportunities |
| Just draw ArchiMate without using in decisions | Diagrams are means, zero value if not used in decisions |
| Operate in PowerPoint EA | AI-unparseable, leaving in machine-readable form is modern |
| Not utilize industry-specialized FW (BIAN etc.) and start from scratch | Ignoring industry-knowledge accumulation, reinventing the wheel |
| Try to solve everything with TOGAF only | Per-purpose combination of TOGAF + ArchiMate + industry-specialized is modern |
| Lock plans in 3-year fix unchangeable | Canât follow business changes, era of agile EA |
| Output creation as KPI | 300-page docs read by no one |
| Central EA diverged from field projects | EA becomes ivory tower, ignored by field |
| Believe in âapplying TOGAF perfectlyâ | Full application is unrealistic; Tailoring for your company is the correct usage |
| Think âdrawing ArchiMate is EAâ | Diagrams are means; value emerges only when used in decisions â just drawing is meaningless |
| Dismiss âEA is an old methodâ | Classical EA is outdated but reborn as agile EA; necessity is rising |
| Insist âone framework is enoughâ | Per-purpose multiple combinations is modern; TOGAF + ArchiMate + industry-specialized is standard |
Spotifyâs agile EA (Tribe / Squad / Chapter / Guild model, later spread worldwide as âSpotify Modelâ) is a success case maintaining alignment of hundreds of teams not via centralized perfect models but with âsufficient modelsâ. A contrasting lesson with the Japan major-SIerâs TOGAF-full-application 1.5-year Phase-B-stagnation case.
Frameworks are maps, but you walk. Start walking with sufficient maps, not perfect maps.
What to decide - what is your projectâs answer?
For each of the following, try to articulate your projectâs answer in 1-2 sentences. Starting work with these vague always invites later questions like âwhy did we decide this again?â
- Major framework (TOGAF / Zachman etc.)
- Modeling notation (ArchiMate etc.)
- Application scope (Tailoring contents)
- Industry-specialized framework (BIAN etc. utilization)
- Tool selection (Archi / Sparx EA etc.)
- Certification / education (TOGAF Foundation etc.)
- Operational cycle (quarterly / annual)
Authorâs note - cases of orgs exhausted by âframework fundamentalismâ
Orgs failing by treating EA frameworks as procedure manuals recur in the industry.
In a Japanese major SIer, after setting the policy of fully applying TOGAF ADM from Phase A to H for a large customer project, they spent a year and half just on Phase B (BA), creating nearly a 300-page capability map, with the field distancing themselves saying âEA is the diagram-drawing dept,â and ultimately the project was frozen. After re-tailoring to âenter from Phase D (TA), scope only cloud migration,â concrete migration plans came out in half a year, recovering org trust - the story is continuously told as a lesson in EA circles.
In contrast, Spotifyâs agile EA is often cited as a success case. Spotify operated EA with agile thinking from the start, creating the distributed-architecture-org model âTribe / Squad / Chapter / Guildâ (later spread worldwide as âSpotify Modelâ). Not a centralized perfect model but operations of âsufficient modelsâ where each Squad autonomously decides architecture, with Chapter loosely coordinating company-wide standards - balancing high-speed development while maintaining alignment of hundreds of teams.
Both show that âusing frameworks as entry, not procedure manualsâ is the biggest key to not killing EA. Not drawing perfect maps but starting to walk with sufficient maps is the correct answer.
How to choose
The core of EA frameworks is the thinking of not using as is, Tailoring to your company. Perfectly applying all TOGAF phases yet making no progress in 3 years is a typical failure. Predecessorsâ decades of practical knowledge for efficiency, with selection like narrowing to Phase A-B-D, is the realistic answer. The combination of TOGAF + ArchiMate + industry-specialized (BIAN etc.) is the modern standard, with single-framework fundamentalism outdated. Creating outputs themselves isnât value â value emerges when used in decisions â this is the iron rule of framework utilization.
AI-era decision axes
When AI-driven dev (vibe coding) and AI usage are the premise, EA frameworks are re-evaluated as structured architecture descriptions AI can understand. Formalized models like ArchiMate are easy to analyze / generate / convert with LLMs (Large Language Models).
| Favored in the AI era | Disfavored in the AI era |
|---|---|
| Formalized models like ArchiMate | PowerPoint hand-drawn diagrams |
| Code-ized EA | Paper documents |
| Git-managed models | Personal Excel |
| API-referenceable | Shared via files |
In the era of âAI reading EA, analyzing / proposing,â framework-compliant formalized models become AI-era competitiveness. The movement of EA as Code (code-izing EA) is starting.
Another decisive axis is the demand for making it machine-readable via EA as Code. In the era when AI reads EA and does impact analysis / proposals, PowerPoint hand-drawn diagrams and personal Excel get eliminated. Only companies Git-managing formalized models like ArchiMate and keeping in API-referenceable state can leverage AI-era EA. The transition from traditional EAâs plan-focused to agile EA (quarterly review, per-team collaboration) also progresses in parallel.
AI-era EA leaves in machine-readable form. PowerPoint EA gets eliminated.
Selection priorities
- TOGAF + ArchiMate as axes - industry standard, certifications, abundant drawing tools
- Tailor and select - donât fully apply, narrow to Phase A-B-D, fundamentalism forbidden
- Co-use industry-specialized FW - BIAN (finance), DoDAF (government), leverage industry knowledge
- Machine-readable, Git-managed, agile-ized - EA as Code, quarterly review, AI-readable form
âTOGAF + ArchiMate Tailored, Git-managed and machine-readable.â PowerPoint EA gets eliminated.
Summary
This article covered EA frameworks, including TOGAF, Zachman, ArchiMate, BIAN, FEAF/DoDAF, ADM Tailoring, agile EA, and EA as Code.
Anchor on TOGAF + ArchiMate, Tailor and select, co-use industry-specialized FW, Git-manage in machine-readable form. That is the practical answer for EA-framework utilization in 2026.
And this was the final installment of the âEnterprise Architectureâ category. Next time weâll start a new category (Solution Architecture).
I hope youâll read the next article as well.
đ Series: Architecture Crash Course for the Generative-AI Era (74/89)