Low-code blog | eSystems

What is an Enterprise Architecture?

Written by Mika Roivainen | Aug 7, 2025 9:16:31 AM

A business can have smart people, strong goals, and advanced tools—but if its systems do not talk to each other, progress breaks down. Gaps start to appear between teams, data becomes unreliable, and change takes too long. The problem is not the tools—it is the missing structure that connects everything.

Enterprise Architecture fills that gap. It builds a shared structure for how processes, data, applications, and technologies work together. It aligns business goals with IT systems and gives a clear view to guide decisions. This article explains what Enterprise Architecture is, its purpose, components, frameworks, processes, and how it supports digital transformation.

Want to simplify tech processes? Read What is IT Automation? A Beginner’s Guide.

What is Enterprise Architecture?

Enterprise architecture is a way to plan and manage the structure of a company’s systems, processes, data, and technology. 

It shows how everything works together across the business and IT. Enterprise architecture gives a full view of the organization to help teams build systems that fit business goals.

Purpose of Enterprise Architecture

The purpose of enterprise architecture is to help the business and IT work as one system. It guides how to make changes in a smart and planned way. 

It also helps reduce waste, fix problems faster, and support growth by showing the best path forward for people, processes, and technology.

Key Components of Enterprise Architecture

1. Describe Business Architecture

Business architecture shows how a company works. It includes business goals, roles, tasks, and processes. It also shows how different teams are connected. This helps the company see what it does and where it can improve.

2. Outline Data Architecture

Data architecture shows how data is collected, stored, and shared. It includes data sources, data types, and where the data goes. It also defines who can use the data and how they can access it. This helps keep the data correct and easy to use.

3. Explore Application Architecture

Application architecture shows the software used in the company. It lists the apps, their roles, and how they connect with each other. It also checks if the apps match business needs. This helps reduce extra tools and improve how apps work together.

4. Examine Technology Architecture

Technology architecture shows the hardware and networks that support apps and data. It includes servers, cloud services, databases, and communication tools. This helps teams know what is running the systems and how to plan for upgrades.

Importance of Enterprise Architecture in Digital Transformation

1. Align Business Strategy with IT Capabilities

Enterprise architecture helps match business goals with IT systems. It checks if current tools and systems can support what the business wants to do. This makes sure the company does not waste money on technology that does not help.

2. Enable Agility and Innovation

Enterprise architecture allows the business to make changes faster. When the structure is clear, teams can update systems without starting over. This makes it easier to test new ideas and bring them into real use.

3. Facilitate Integration and Interoperability

Enterprise architecture helps different systems talk to each other. This is called integration. It also ensures that the systems work together correctly. This is called interoperability. Both are needed to avoid delays and errors in business processes.

4. Enhance Risk Management and Compliance

Enterprise architecture helps find risks in systems before they cause problems. It also helps follow rules and laws, which is called compliance. A clear plan shows who is responsible and what steps to follow.

5. Support Scalable Digital Solutions with eSystems’ Low-Code Platforms

eSystems uses low-code platforms like Mendix and OutSystems to build apps that grow with the business. These apps can be updated quickly and scaled across teams without starting from scratch. This helps companies manage large systems without increasing workload.

6. Deliver Reusable Assets and Reduce Backlog with eSystems Digital Factory

eSystems builds digital factories where teams create reusable parts like templates and workflows. These parts can be used again in other projects. This cuts down the time spent on new work and helps teams clear backlogs by using ready-made solutions.

Enterprise Architecture Process

1. Define Business Goals and Objectives

This step sets the purpose of the architecture work. Teams first ask what the business wants to achieve. Goals are broad targets, like improving customer service. Objectives are smaller steps, like reducing response time. All architecture plans must support these goals.

2. Assess Current Architecture (As-Is State)

The current architecture is called the As-Is state. It includes all systems, processes, and data used today. Teams map how everything works, what tools are used, and where problems exist. This gives a full picture of what is working and what is not.

3. Design Target Architecture (To-Be State)

The To-Be state is the future plan for the architecture. It shows how systems should work to meet business goals. Teams choose which tools, processes, and data setups will be used. The design must fix current problems and support growth.

4. Develop Transition Roadmap

The roadmap shows the steps needed to move from the As-Is state to the To-Be state. It includes tasks, timelines, and who is responsible. This helps the team avoid confusion and make progress in the right order.

5. Implement and Govern the Architecture

Implementation means putting the new architecture in place. Governance means checking that everything is done as planned. Teams use rules, reviews, and reports to keep the architecture on track. If changes are needed, they must follow the same process.

Enterprise Architecture Frameworks and Methodologies

1. Understand The Open Group Architecture Framework (TOGAF)

TOGAF is a widely used framework for creating and managing enterprise architecture. It uses a step-by-step process called the Architecture Development Method. This method helps teams define business needs, build solutions, and manage change. TOGAF also includes tools, guidelines, and templates that help document and track the architecture work.

2. Apply the Zachman Framework

The Zachman Framework is a table used to organize architecture information. It has six questions across the top: What, How, Where, Who, When, and Why. It has six rows for different roles like planners, designers, and builders. The goal is to give a clear view of the enterprise from different angles without missing important details.

3. Utilize Federal Enterprise Architecture Framework (FEAF)

FEAF was created for use in the U.S. government, but it can be used by others. It helps teams group their architecture into different layers, such as business, data, application, and technology. FEAF also includes reference models that make it easier to compare systems and plan upgrades in a standard way.

4. Explore Department of Defense Architecture Framework (DoDAF)

DoDAF is used by defense organizations to manage complex systems. It includes a set of views that show how systems work, how they connect, and how they support missions. DoDAF helps large teams stay aligned when building systems that must meet strict rules and timelines.

5. Use ArchiMate Modeling Language

ArchiMate is a visual language used to create diagrams for enterprise architecture. It works with frameworks like TOGAF. ArchiMate has its own symbols for business, application, and technology layers. It helps teams explain their architecture clearly using one standard way to draw everything.

Best Practices in Enterprise Architecture

1. Establish Clear Governance Structures

Governance in enterprise architecture means assigning roles, making rules, and tracking progress. This structure helps teams follow the same plan and keeps changes controlled. Governance also includes reviews and decision boards, so changes are not made without a clear purpose.

2. Foster Stakeholder Engagement and Collaboration

Enterprise architecture affects many people inside the company. These include business heads, IT leaders, and operations teams. To avoid failure, all of them must be involved early. Working together helps solve real business problems and reduces the chance of creating systems that no one uses.

3. Maintain an Up-to-Date Architecture Repository

An architecture repository is like a library for the business and IT setup. It stores models, documents, and plans. This information must always be current. If it is outdated, teams may make bad decisions. A working repository also helps in audits, roadmaps, and handovers.

4. Align Architecture with Business Value

Architecture must support business goals, not just IT goals. This means linking every IT system, app, or update to a business case. If something does not bring value, it should be removed or changed. Regular reviews help make sure that what is built is also useful.

5. Adopt an Iterative and Agile Approach

Large architecture changes often fail when done all at once. A better way is to work in smaller parts, test results, and adjust. This is called agile or iterative delivery. It reduces risk, saves cost, and helps architecture respond to real-time business needs.

6. Implement End-to-End Automation with eSystems and Workato

eSystems uses Workato to build automation across cloud and on-premise systems. With this, data moves smoothly between apps like CRM, ERP, and HR tools. 

eSystems helps companies set up automation headquarters where rules and best practices are managed in one place. 

This lowers the cost of manual work and cuts down errors. Workato also allows eSystems to build custom workflows and human tasks in one platform, helping companies automate full business processes, not just small tasks.

7. Improve Master Data Accuracy with eSystems MDM Services

eSystems offers modern Master Data Management (MDM) services that automatically clean, sync, and manage data across platforms. When a change is made in one system, it updates in all connected systems. 

This removes duplicate entries and prevents missing or wrong data. eSystems also integrates these MDM tools with daily-use platforms like Teams or Slack, so users do not need to learn a new system. These services support data ownership, reduce human error, and create a trusted source of truth for enterprise architecture.

Conclusion

Enterprise architecture helps connect business goals with the right systems, data, and tools. It gives a full view of how everything works together and guides smart changes. 

Using strong frameworks, clear steps, and tools like those from eSystems makes it easier to manage growth, reduce errors, and stay ready for change. When done right, enterprise architecture supports both business and IT teams in working better together.

About eSystems

eSystems helps companies fix broken systems and build smart apps using low-code tools. We support enterprise architects by simplifying processes, cutting delays, and reducing manual work. Our work covers all business areas like finance, HR, IT, procurement, and data management.

We use low-code platforms like Mendix and OutSystems to speed up digital change. These tools let teams build apps faster without starting from scratch. With Workato, we connect apps and systems so that data flows easily across the business.

Our automation tools lower the time and cost of development. We create reusable templates to clear backlogs and let teams focus on real work. We also support two-way sync for better data flow between systems like Slack or Teams. This helps companies fix data issues without buying expensive MDM platforms.

We work with CIOs, IT architects, and data teams to improve system design and reduce tech debt. With eSystems, you build apps once and scale them across your business. You get fast delivery, strong security, and freedom from vendor lock.

Start simplifying your enterprise architecture. Book a demo with eSystems.

FAQ

1. What is Enterprise Architecture?

Enterprise Architecture is a way to plan how a company’s systems, data, apps, and technology work together. It helps business and IT stay connected.

2. Why is Enterprise Architecture important?

It helps the business run better by reducing confusion, saving money, and making sure all systems support the company’s goals.

3. What are the main frameworks used in Enterprise Architecture?

Some common frameworks are TOGAF, Zachman, and FEAF. They guide how to plan and manage enterprise systems in a clear and organized way.

4. How does Enterprise Architecture benefit businesses?

It makes systems easier to manage, helps teams work together, cuts down on waste, and allows the business to change faster when needed.

5. What does an Enterprise Architect do?

An Enterprise Architect designs how systems and processes fit together. They make sure everything supports the business and works well across teams.