The National Enterprise Architecture Methodology defines a set of specifications and reference artifacts: the EA Content Metamodel, the six reference models, viewpoints, and the requirement record with its fields and states. This page lists them as they appear in the methodology.
| Domain | Role of the Domain in the Metamodel |
|---|---|
| Business Architecture | Holds the business capabilities, organisational units, process groups, services, business processes, positions, policies, roles, activities, and products. |
| Beneficiary Experience Architecture | Describes beneficiary segments, journeys, touchpoints, service channels, and the indicators that measure the experience. |
| Data Architecture | Defines data entities, attributes, relationships, data owners, and classification and governance levels. |
| Applications Architecture | Defines applications, their functions, interfaces, integrations, and their link to capabilities and services. |
| Technology Architecture | Defines the infrastructure components: servers, networks, databases, cloud platforms, and operating environments. |
| Security Architecture | Defines the protection controls, access mechanisms, identity management, and cybersecurity compliance requirements. |
Capability viewpoint: links administrative, core, and supporting capabilities to services and procedures.
Service viewpoint: shows services, their channels, and their link to capabilities and applications.
Data viewpoint: presents data entities, their relationships, and their governance.
Applications viewpoint: shows applications, their functions, and their integrations.
Technology viewpoint: presents the infrastructure and the operating environments.
Security viewpoint: presents controls and protection and compliance requirements.
| Field | Description |
|---|---|
| Requirement Code | The approved identifier for the requirement, used for tracking and reference. |
| Requirement Text | A description of the challenge to be addressed through the EA components. |
| Requirement Source | The entity or stakeholder that raised the requirement. |
| Requirement Domain | The primary EA domain to which the requirement belongs. |
| Affected Domains | The other domains whose components must be developed to address the requirement. |
| Related Requirements | The codes of related requirements that may affect the processing of this one. |
| Requirement State | The current position of the requirement in its lifecycle, per the eight approved states. |
| Implementation Priority | The priority level of the requirement: High, Medium, or Low. |