Linked.Archi EA on a Page Metamodel Definition

Ontology for the Enterprise Architecture on a Page framework by Svyatoslav Kotusev. Models the CSVLOD artifact taxonomy (Considerations, Standards, Visions, Landscapes, Outlines, Designs), the three core EA processes (Strategic Planning, Initiative Delivery, Technology Optimization), process phases and governance activities, EA practice participants, governance bodies and tiers, maturity stages, and the 24 empirically validated EA artifacts. Based on peer-reviewed research across 27+ organizations, this framework describes how EA practices actually work rather than prescribing how they should work. This is not an official IASA document.

SHACL validation shapes for the EA on a Page framework. Validates artifact instances, process-artifact mappings, governance arrangements, and maturity stage consistency. These shapes encode the structural rules implicit in the EA on a Page framework.

Classification of 24 EA artifacts by CSVLOD type and usage frequency.

Viewpoints for the EA on a Page framework. Each viewpoint specifies the artifact types it includes, the stakeholders it targets, and the purpose it serves. Derived from the CSVLOD artifact taxonomy and the three core EA processes described by Kotusev. EA on a Page does not formally define viewpoints, but its artifact types and processes imply a natural set of viewpoints that practitioners use in practice. These viewpoints formalize those implicit conventions.

Classification of EA on a Page viewpoints by the EA process they primarily support: Strategic Planning, Technology Optimization, or Initiative Delivery.

A strategic document that captures the organization's architecture principles, policies, and high-level direction. Combines Considerations (governance rules) with Visions (future-state descriptions) to articulate how IT investments should be guided. Typically produced annually or when business strategy changes significantly.

A document that defines the organization's technology standards, approved technology stack, and rationalization roadmap. Combines Standards (approved technologies) with Landscapes (current state) to identify optimization opportunities and plan technology evolution.

A structured catalog of approved technologies organized by functional area. Each technology entry includes lifecycle status (invest, maintain, contain, retire), ownership, and usage guidelines. The primary Standards artifact.

A concise document produced during the Initiation phase that describes a proposed initiative at a high level — business context, proposed approach, key assumptions, and estimated effort. Used to secure initial approval and funding for further architecture work.

A document produced during the Initiation phase that describes the proposed solution at a level sufficient for investment decisions. Includes the solution concept, options assessment, standards compliance check, and recommended approach. The primary Outline artifact.

A detailed document produced during the Realization phase that specifies the solution architecture at a level sufficient for implementation. Includes component design, interface contracts, data models, deployment topology, and non-functional requirements. The primary Design artifact.

A document that captures the organization's architecture principles and policies — the Considerations artifacts. Principles are high-level governance rules that guide all IT-related decisions. Policies are specific mandatory rules. Typically maintained by enterprise architects and approved by the steering committee.

A time-sequenced plan showing the transition from current state to target state. Combines strategic direction (Visions) with current reality (Landscapes) to produce a phased investment plan. Typically maintained quarterly and presented to business and IT leadership.

Classification of EA practice maturity into four stages based on empirical observation across 27+ organizations. Describes what is typically observed at each stage, not what should be achieved in a linear progression.

Classification of EA governance arrangements including architecture tiers, governance body types, and governance activities. Based on EA Function on a Page by Kotusev.