Architecture Domain

An architecture domain is a specialized view of the enterprise focusing on a coherent set of concerns—typically business, data, application, and technology, with security and solution architecture often treated as cross-cutting or distinct domains. Domain architectures describe current and target states, standards, and dependencies within that concern space. Together, domains compose the full enterprise architecture without collapsing distinct stakeholder needs.

In Practice

Larkinized LLC establishes domain ownership and integration points so business architects, data stewards, and infrastructure leaders produce aligned artifacts. Domain leads participate in ARB reviews when changes affect interfaces or shared entities. Roadmaps should show cross-domain dependencies explicitly to avoid sequenced failures.

Example

A data domain assessment identifies inconsistent customer identifiers that block application consolidation in the target application architecture.