Understanding Enterprise Architecture: Roles, Domains, and Differences among Enterprise, Solution, and Domain Architects

Four Architecture Domains

Enterprise architecture guides an organization’s business, information, process, and technology decisions to execute strategy and meet customer needs, typically encompassing four interrelated domains.

Business Architecture: Describes how the enterprise is organized and the functions needed to deliver its vision, answering what the business does and who performs it.

Application Architecture: Details individual applications, their interactions, and how they support core business processes.

Data Architecture: Defines the logical and physical structure of data assets and management resources, enabling data‑driven insights.

Technology Architecture: Specifies the software and hardware required to implement business, data, and application services.

Enterprise Architect

An enterprise architect collaborates with key stakeholders to define business goals and design the supporting enterprise infrastructure, ensuring alignment with the company’s strategy.

Key responsibilities include:

Analyzing current technology trends and providing recommendations.

Evaluating applications for compliance with enterprise and business standards.

Assessing the survivability of architectures amid organizational change.

Training technical staff on governance models and best‑practice frameworks.

Solution Architect

A solution architect translates business requirements into concrete solutions, products, or services, coordinating activities from concept definition through analysis, implementation, and hand‑off to IT operations.

Key responsibilities include:

Managing development teams during design and build phases.

Providing mentorship and training to junior staff.

Collaborating with developers to achieve business objectives.

Overseeing strategic relationships within the technical environment.

Domain Architect

A domain architect is a specialist with deep knowledge in a specific area and may work within the enterprise architecture team or on delivery projects.

Business Architect

Application Architect

Information Architect

Technology Architect

Data Architect

Security Architect

Enterprise Architect vs. Solution Architect vs. Domain Architect

Enterprise architects define the problems that need solving.

Solution architects convert those problems into concrete solutions.

Domain architects own a specific solution area (e.g., a business architect works with an enterprise architect on business architecture, while an application architect collaborates with a domain architect on application design).

The article also provides contact information and links to community groups, webinars, and social media channels for further discussion on enterprise architecture and related technologies.