Logicore Pty Limited
Minimum Viable
Enterprise Architecture
A practical, low-cost methodology to deliver real architectural value — starting where you are, building to where you need to be.
The MVEA Methodology
Four Stages of Enterprise Architecture Maturity
MVEA gives organisations a practical on-ramp to Enterprise Architecture — fast, affordable, and built to grow. Each stage builds on the last, adding depth and value as the organisation’s readiness increases.
Stage 1
Minimum Viable Enterprise Architecture
Get started with org charts, application portfolios, project lists and business strategy — all linked together in standard tools.
Stage 2
Digitised Architecture
Move to a collaborative online repository with SharePoint, business capability modelling, and real-time diagram updates.
Stage 3
Foundational Architecture
Link capabilities to processes, data entities and infrastructure. Add maturity assessments to drive investment decisions.
Stage 4
Integral Architecture
Architecture becomes pervasive — shaping strategy, culture and customer experience. Everyone becomes an architect.
Time to first insights
A working Stage 1 MVEA can be delivered within two weeks using data already available in most organisations.
Cost vs traditional EA
Case studies show MVEA delivered at roughly one quarter the cost of traditional top-down EA engagement.
Organisations validated
MVEA has been applied across more than thirty organisations — from government agencies to global enterprises.
Accuracy improvement
One Stage 2 implementation saw a 70% improvement in architectural accuracy, with sprint delivery times also reduced.
Real-World Results
Three Case Studies, Five Lessons
Case Study 1
Growing Tech Company — Stage 2 Transformation
A SharePoint-based Architecture Repository replaced spreadsheets, enabling project teams to update designs in real time. Sprint accuracy improved by 70% and delivery timelines shortened.
Case Study 2
Global Organisation — Technology Strategy
A global firm was quoted $750K for an IT strategy. Using MVEA, We delivered the same outcome — 450 applications, 1000 servers, 8 regions — at a quarter of the cost.
Case Study 3
Government Agency — 25 Days Start to Finish
SharePoint repository stood up in 5 days. Business capability model workshops followed. A 3-year roadmap was delivered in 25 days total, with COO-requested poster-sized prints for office walls.
Jeremy Sadler’s definitive guide to the first two stages of MVEA — plus a detailed appendix on building a Business Digital Twin using SharePoint Online and the free MVEA Stage 1 pack.
Outputs & Deliverables
Work Products by Stage
Each stage of MVEA produces a defined set of work products — the catalogues, models, diagrams and reports that make up your Architecture Repository. Click any stage tab to explore its outputs. (WIP)
People & Responsibilities
Roles in the MVEA Framework
MVEA works because it involves the right people at the right time. Here are the nine roles that contribute to the architecture function — from executive sponsors to support staff.
Enterprise Architect
Strategic direction & governance
Responsible for enterprise-wide architecture. Defines principles, standards and the architecture roadmap. Engages executive leadership on technology strategy.
Domain Architect
Business domain architecture
Responsible for architecture within a specific business domain (finance, HR, supply chain, etc.). Translates enterprise principles into domain-specific designs and governs projects within their domain.
Project Architect
Project-level architecture
Responsible for the architecture of a specific project or initiative. Ensures solutions conform to domain and enterprise standards. Works with Solution Architects, project managers and development teams.
Solution Architect
Technical solution design
Designs end-to-end technical solutions meeting business requirements within project and enterprise constraints. Translates requirements into detailed technical designs and guides development teams.
Business Manager (Agile Product Manageer)
Executive sponsor
Sponsors architecture initiatives, approves decisions that impact the business, ensures alignment with business goals and is accountable for the business outcomes of architecture-driven initiatives.
Business Expert
Domain knowledge & SME
Provides in-depth knowledge of business operations, processes and strategy. Bridges the gap between business and IT, ensuring architecture solutions are grounded in real business needs.
Tech Manager
IT management stakeholder
Represents IT management in the architecture process. Bridges architecture strategy and technical execution. Ensures decisions are feasible within operational and resource constraints.
IT Expert
Technical specialist advisor
Provides specialist technical knowledge in areas like cloud, security, data, networking. Advises architects on the capabilities, limitations and evolution of specific technologies.
Support
Repository & documentation
Manages the architecture repository and documentation. Maintains version control, coordinates governance meetings, and keeps the architecture function running smoothly.
Click any role card to expand details. In smaller organisations, one person may perform multiple roles.
Stage 1 · Minimum Viable Enterprise Architecture
Getting Started — Just Enough, Just in Time
Use what you already have. Combine the org chart, application portfolio, project list and business strategy into an immediately useful EA repository — in two to four weeks.
Five Steps to MVEA
Step 1 of 5 open
The org chart is the quickest starting point. Convert it from a people-focused view to a departments-and-teams view, and you have a rough functional model of your organisation — for free.
- Use your existing HR org chart as-is if possible
- Reorganise around departments and functions rather than named individuals
- This becomes your business functional model — the “who” in the MVEA
Compile a list of all your applications — ideally from a CMDB dump, or failing that, a survey of key stakeholders. This is the “what” in the MVEA equation.
- Focus on CRITICAL and CORE applications first (those supporting primary business functions)
- Add a quick technical assessment for each: Good / Average / Poor
- Note whether applications are SaaS, cloud IaaS, or on-premise
- Identify key interfaces — which applications depend on each other for data?
Map which business units use which applications as their core tools. This overlay creates a visual heat-map showing alignment — and gaps — between the business and its technology.
- Use a spreadsheet to create the mapping — no specialised tool needed
- Visualise by overlaying coloured boxes on your functional model diagram
- Immediately visible: which business areas are well-served, and which have no supporting application
Get your project list from the PMO and link each project to the applications it will change, replace, or create. This answers “how” the business is changing its technology.
- Include new applications being introduced and old ones being retired
- Mark each application’s investment status: Invested, Maintained, Retiring, New
- Identify project interdependencies — two projects touching the same application affect each other
Extract the vision, mission, goals, and strategic drivers from business strategy documents, and link them to your projects. This answers “why” — and makes the architecture strategically credible.
- Extract key goals and drivers — even a brief bullet-point summary is enough
- Map each project to the strategic goals it supports
- Identify projects with no clear strategic linkage — these are candidates for deferral
- Build a one-page roadmap: current state → strategic initiatives → target state
People & Roles
Who is involved in Stage 1?
Enterprise Architect / Consultant
Leads and facilitates the MVEA engagement. Click to see key tasks.
- Designs and facilitates the MVEA process
- Consolidates data from multiple sources
- Creates the visualisations and roadmap
- Presents insights to executives
- Defines architecture principles and standards
CIO / IT Leadership
Sponsors and champions the MVEA initiative internally.
- Provides mandate and sponsorship
- Makes data and systems accessible
- Reviews roadmap and investment recommendations
- Communicates value to executive committee
PMO / Project Managers
Provide the project list and support project-application mapping.
- Supply current project portfolio data
- Validate project-to-application linkages
- Help identify strategic alignment of projects
- Use the MVEA roadmap for planning
Application Owners / SMEs
Provide authoritative data on applications and their status.
- Validate application catalogue entries
- Provide technical assessment (Good/Average/Poor)
- Identify interfaces and dependencies
- Keep records updated as changes occur
Executive Committee
Primary customer for Stage 1 insights and investment decisions.
- Consume strategic roadmap and insights
- Validate strategic goals and priorities
- Make investment decisions informed by the MVEA
- Champion architectural alignment
HR / Business Units
Provide organisational structure and business function context.
- Supply current organisational chart
- Validate functional model accuracy
- Identify primary applications used per department
Stage 2 · Digitised Architecture
Making Architecture Accessible, Collaborative and Live
Move from a clunky spreadsheet to an online, multi-user repository. Make architecture available to everyone — real-time, searchable, and automatically maintained as projects progress.
Four Steps to Stage 2
Step 1 of 4 open
The MVEA spreadsheet is a single-user, high-maintenance tool. The greatest impact of Stage 2 is moving it into SharePoint Online (or a similar collaboration platform) — making it available to everyone, always.
- Upload your MVEA folder structure and diagrams to a SharePoint document library
- Migrate application, project and org unit catalogues to SharePoint Lists
- Re-link your Visio models to the SharePoint lists — shapes click through to live records
- Implement Power BI reports to replace Excel pivot tables
Replace the organisational model with a Business Capability Model (BCM) — a more stable, function-based view of the business that survives restructures and re-orgs.
- Create a Business Capability catalogue in SharePoint
- Build a Visio BCM diagram linked to the catalogue
- Map applications to business capabilities (builds on the org-unit mapping from Stage 1)
- The overlay reveals gaps — capabilities with no supporting application
Expand beyond applications to catalogue all technology: hardware, operating systems, databases, middleware and tools. This sets the foundation for technology standards management.
- Extend the application catalogue or create a separate technology catalogue
- Classify each item: Application, Database, OS, Hardware, Middleware, etc.
- Add a Standards Status field: Current Standard / Under Evaluation / Retiring / Retired
- Run a report: how many out-of-date OS versions do you have? How many duplicates?
Integration is almost universally underestimated. An interface catalogue gives you the first clear picture of your integration landscape — and the evidence to invest in improving it.
- Create an interface catalogue as a SharePoint List
- Include every integration — including manual ones
- Visualise with a diagram showing application-to-application flows
- Use this to develop an integration strategy for Stage 3
People & Roles
Who is involved in Stage 2?
Enterprise / Solution Architect
Leads the SharePoint implementation and BCM design.
- Designs and builds the SharePoint repository
- Facilitates BCM workshops with business units
- Re-links Visio models to SharePoint lists
- Develops Power BI reports and dashboards
- Manages the integration catalogue
Project Delivery Teams
The primary daily users and maintainers of the repository.
- Update application and interface records as projects progress
- Use the repository to assess design options
- Reduce architectural re-work by referencing existing decisions
- Feed new information back into the repository
Business Analysts
Capture process and interface details during project delivery.
- Document business capabilities in workshops
- Map processes to capabilities
- Capture interface specifications
- Validate data accuracy in the repository
IT Operations / Infrastructure
Provide technology and infrastructure data for the catalogue.
- Supply server, OS and hardware inventory data
- Validate technology standards status
- Identify end-of-life infrastructure
CTO / Architecture Governance
Uses the repository to govern technology decisions across projects.
- Reviews architecture proposals against the repository
- Sets technology standards
- Ensures projects align with target architecture
- Communicates strategy via repository artefacts
Stage 3 · Foundational Architecture
Architecture That Drives Strategic Decisions
Link processes, data and infrastructure to your capability model. Add maturity assessments. Move from supporting business decisions to influencing and driving them.
Four Steps to Stage 3
Business Capabilities are now the anchor point for the entire model. Linking processes and data entities to them enables comprehensive maturity assessment.
- Use APQC’s Process Classification Framework (PCF) as a starting point for process cataloguing
- Map level 2 APQC processes to your level 1–2 business capabilities
- Create a Data Entity catalogue — high-level groupings of related data fields (e.g. “Customer Order”, “Product”)
- Link data entities to the applications where data is mastered
Enrich your integration model by linking the interface catalogue to data entities. This begins to define actual data flows between applications.
- For each interface, identify which data entities flow across it
- Start at a high level — accuracy improves as project work drills down
- Link to interface specifications where they exist
- This lays the foundation for an integration strategy in Stage 4
Survey the business to score each architectural element. Combine the scores into an overall Business Capability maturity rating that drives targeted investment.
- Assess each element using Good / Average / Poor (resist over-engineering)
- Combine element scores: all Good → Very Good; all Poor → Very Poor; mixed → Average
- Heat-map the BCM to make Very Poor capabilities immediately visible
- Use insights to prioritise investment in the next project portfolio round
Bring in the server and infrastructure layer, linked to locations. This reveals performance, resilience and compliance risks invisible to application-level analysis alone.
- Create a Server Catalogue linked to Applications and physical/cloud locations
- Include OS versions and whether servers are physical, IaaS or SaaS
- Identify applications hosted in geographically distant locations from their users
- Develop a Geographic Architecture Model for multi-site organisations
Stage 4 · Integral Architecture
Architecture as a Fundamental Part of How the Business Operates
Architecture is no longer an IT function — it influences strategy, customer experience, culture and financial decision-making. Everyone is an architect.
Five Steps to Stage 4
Link assessed Roles to Business Capabilities to complete the capability model with people. Use this to manage performance and direct investment scientifically.
- Assess organisational Roles across capabilities
- Link roles to the People dimension of the capability assessment
- Full capability picture: People + Process + Technology + Data
- Strategy can now be driven by capability performance data, not opinion
Add Services and Products, linking them to Business Capabilities and Org Units. Investments in capabilities can now be measured by their impact on customer-facing services.
- Catalogue services and products in the repository
- Link to the capabilities that deliver them
- Model how capability improvement impacts product and service quality
- Enables evidence-based investment decisions at the service level
Add Network, Security and Integration models linked to the server catalogue. The complete chain from business service to infrastructure is now visible and measurable.
- Network architecture linked to application infrastructure
- Security architecture documented and linked to risk
- Impact of infrastructure failure can be modelled up to the business service level
- Investment in infrastructure justified by business service impact
Link Organisation Units to Locations to enhance the geographic model. At a micro level, model the interactions between teams to improve communication and capability performance.
- Geographic model enhanced with org-unit presence at each location
- Communication pathways between teams modelled and assessed
- Remote and distributed team design informed by the model
Incorporate financial data — technology costs, operating costs and people costs. The architecture repository is now a near-complete digital twin of the business.
- Technology costs categorised using TBM (Technology Business Management) taxonomy
- Operating cost data mapped to capabilities and services
- Scenario modelling: “If we invest in Capability X, what is the projected service and financial impact?”
- Innovation opportunities identified through holistic design analysis
Stage 4 Vision
Everyone Can Be an Architect
“We shape our buildings and afterwards our buildings shape us.” — Winston Churchill. The same is true of business. At Stage 4, the architecture of the business shapes how every person in it works.
Customer & service-driven
Investment decisions are tied directly to capability performance and customer impact — not budget cycles or politics.
Architecture is everyone’s job
Analysts, developers, project managers and business owners all contribute to and use the model as part of daily work.
Visible opportunity
A holistic model reveals where inefficiency hides and where investment will have the most impact — including innovation opportunities invisible to siloed teams.
Proactive, not reactive
Infrastructure, security and integration risks are modelled and linked to business impact — enabling proactive investment rather than crisis response.