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Linked.Archi EA on a Page Ontology

Release: 2020-07-27

Modified on: 2026-05-03
This version:
https://meta.linked.archi/eaonapage/onto/0.1.0#
Revision:
0.1.0
Issued on:
2020-07-27
Authors:
Kalin Maldzhanski
Publisher:
Linked.Archi
See also:
http://kotusev.com/
https://eaonapage.com/
https://www.bcs.org/articles-opinion-and-research/enterprise-architecture-on-a-single-page
https://www.bcs.org/articles-opinion-and-research/enterprise-architecture-practice-on-a-single-page
License:
http://creativecommons.org/licenses/by/4.0/
Visualization:
Visualize with WebVowl
Cite as:
Kotusev, S. (2019). Enterprise architecture and enterprise architecture artifacts: Questioning the old concept in light of new findings. Journal of Information Technology, 34(2), 102-128.
Provenance of this page
draft

Abstract

OWL ontology for the EA on a Page framework — artifact types, processes, process phases, governance model, participants, and maturity stages for evidence-based EA practice.

Linked.Archi EA on a Page Ontology: Overview back to ToC

This ontology has the following classes and properties.

Classes

Object Properties

Data Properties

Named Individuals

Linked.Archi EA on a Page Ontology: Description back to ToC

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.

Cross-reference for Linked.Archi EA on a Page Ontology classes, object properties and data properties back to ToC

This section provides details for each class and property defined by Linked.Archi EA on a Page Ontology.

Classes

Amendmentc back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#Amendment

A governance activity where an approved architecture artifact is modified to reflect changed requirements, new constraints, or lessons learned during implementation.
has super-classes
Governance Activity c

Approvalc back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#Approval

A governance decision to approve an architecture artifact or initiative to proceed. Approvals are granted by the appropriate governance body based on the artifact type and organizational tier.
has super-classes
Governance Activity c

Architecture Reviewc back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#ArchitectureReview

A governance activity where architecture artifacts are reviewed against standards, principles, and strategic direction. Reviews may result in approval, conditional approval, amendment requests, or rejection.
has super-classes
Governance Activity c

Architecture Tierc back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#ArchitectureTier

A level in the architecture governance hierarchy. EA on a Page describes one-tier, two-tier, and three-tier governance models depending on organizational size and complexity. Each tier has its own governance bodies, governed artifact types, and decision authority.
is in domain of
tier level dp
is in range of
governs tier op

Business Leaderc back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#BusinessLeader

has super-classes
EA Practice Participant c
is also defined as
named individual

Considerationc back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#Consideration

has super-classes
EA Artifact c
is also defined as
named individual

Designc back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#Design

has super-classes
EA Artifact c
is also defined as
named individual

EA Artifactc back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#EAArtifact

An enterprise architecture artifact — a document, model, diagram, or other work product used in an EA practice for planning and decision-making. EA artifacts are classified into six general types by the CSVLOD taxonomy based on their usage and purpose.
has super-classes
element c
has sub-classes
Consideration c, Design c, Landscape c, Outline c, Standard c, Vision c
is in domain of
artifact focus dp, artifact lifecycle dp, artifact nature dp, artifact scope dp, artifact type op, governed by op, usage frequency dp, used in process op
is in range of
maturity stage artifact op, process input op, process output op, process uses artifact type op

EA Maturity Stagec back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#MaturityStage

A stage in the maturity of an EA practice, characterized by the processes established, artifacts mastered, governance arrangements in place, and benefits realized. EA on a Page defines four stages from Stage Zero (no architecture) to Stage Three (true enterprise architecture).
is in domain of
has governance arrangement op, maturity benefit dp, maturity challenge dp, maturity stage artifact op, maturity stage process op

EA Practice Participantc back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#EAParticipant

A stakeholder who participates in EA practice processes.
has super-classes
stakeholder c
has sub-classes
Business Leader c, Enterprise Architect c, IT Leader c, Solution Architect c
is in range of
process participant op

EA Processc back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#EAProcess

A core process in an EA practice as defined by the EA on a Page framework. EA practices consist of three distinct but interrelated processes that revolve around the six types of EA artifacts.
has super-classes
architecture process c
has sub-classes
Initiative Delivery c, Strategic Planning c, Technology Optimization c
is in domain of
has phase op, process input op, process output op, process participant op, process uses artifact type op
is in range of
maturity stage process op, used in process op

EA Process Phasec back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#EAProcessPhase

A phase or sub-activity within one of the three core EA processes. Phases represent the lifecycle stages that initiatives pass through within each process.
has super-classes
architecture process c
has sub-classes
Governance Activity c, Initiation c, Realization c
is in range of
has phase op

Enterprise Architectc back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#EnterpriseArchitect

has super-classes
EA Practice Participant c
is also defined as
named individual

Escalationc back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#Escalation

A governance activity where a decision or conflict is escalated to a higher-tier governance body for resolution. Escalation paths are defined by the governance arrangement.
has super-classes
Governance Activity c

Exemptionc back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#Exemption

A governance decision to grant a temporary deviation from established standards or principles for a specific initiative, typically with conditions and a remediation timeline.
has super-classes
Governance Activity c

Governance Activityc back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#GovernanceActivity

An activity within EA governance processes, including architecture reviews, approvals, amendments, exemptions, and escalations.
has super-classes
EA Process Phase c
has sub-classes
Amendment c, Approval c, Architecture Review c, Escalation c, Exemption c

Governance Arrangementc back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#GovernanceArrangement

A configuration of governance bodies, tiers, decision rights, escalation paths, and governed artifact categories that defines how architecture governance operates in an organization. Different maturity stages and organizational sizes lead to different governance arrangements.
is in range of
has governance arrangement op

Governance Bodyc back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#GovernanceBody

An organizational body that governs architecture decisions and artifacts. Governance bodies review, approve, or reject architecture artifacts and decisions at various levels of the organization. Examples include architecture review boards, steering committees, and technology councils.
has super-classes
stakeholder c
is in domain of
escalates to op, governs tier op
is in range of
escalates to op, governed by op

Initiationc back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#Initiation

has super-classes
EA Process Phase c
is also defined as
named individual

Initiative Deliveryc back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#InitiativeDelivery

has super-classes
EA Process c
is also defined as
named individual

IT Leaderc back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#ITLeader

has super-classes
EA Practice Participant c
is also defined as
named individual

Landscapec back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#Landscape

has super-classes
EA Artifact c
is also defined as
named individual

Outlinec back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#Outline

has super-classes
EA Artifact c
is also defined as
named individual

Realizationc back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#Realization

has super-classes
EA Process Phase c
is also defined as
named individual

Solution Architectc back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#SolutionArchitect

has super-classes
EA Practice Participant c
is also defined as
named individual

Standardc back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#Standard

has super-classes
EA Artifact c
is also defined as
named individual

Strategic Planningc back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#StrategicPlanning

has super-classes
EA Process c
is also defined as
named individual

Technology Optimizationc back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#TechnologyOptimization

has super-classes
EA Process c
is also defined as
named individual

Visionc back to ToC or Class ToC

IRI: https://meta.linked.archi/eaonapage/onto#Vision

has super-classes
EA Artifact c
is also defined as
named individual

Object Properties

artifact typeop back to ToC or Object Property ToC

IRI: https://meta.linked.archi/eaonapage/onto#artifactType

Classifies an EA artifact by its CSVLOD type.
has domain
EA Artifact c

escalates toop back to ToC or Object Property ToC

IRI: https://meta.linked.archi/eaonapage/onto#escalatesTo

Links a governance body to the higher-tier body it escalates decisions to.
has domain
Governance Body c
has range
Governance Body c

governed byop back to ToC or Object Property ToC

IRI: https://meta.linked.archi/eaonapage/onto#governedBy

Links an EA artifact to the governance body responsible for its review and approval.
has domain
EA Artifact c
has range
Governance Body c

governs tierop back to ToC or Object Property ToC

IRI: https://meta.linked.archi/eaonapage/onto#governsTier

Links a governance body to the architecture tier it operates at.
has domain
Governance Body c
has range
Architecture Tier c

has governance arrangementop back to ToC or Object Property ToC

IRI: https://meta.linked.archi/eaonapage/onto#hasGovernanceArrangement

Links a maturity stage to the governance arrangement typically observed at that stage.
has domain
EA Maturity Stage c
has range
Governance Arrangement c

has phaseop back to ToC or Object Property ToC

IRI: https://meta.linked.archi/eaonapage/onto#hasPhase

Links an EA process to one of its constituent phases or sub-activities.
has domain
EA Process c
has range
EA Process Phase c

maturity stage artifactop back to ToC or Object Property ToC

IRI: https://meta.linked.archi/eaonapage/onto#maturityStageArtifact

Links a maturity stage to the EA artifact types typically mastered at that stage.
has domain
EA Maturity Stage c
has range
EA Artifact c

maturity stage processop back to ToC or Object Property ToC

IRI: https://meta.linked.archi/eaonapage/onto#maturityStageProcess

Links a maturity stage to the EA processes typically established at that stage.
has domain
EA Maturity Stage c
has range
EA Process c

process inputop back to ToC or Object Property ToC

IRI: https://meta.linked.archi/eaonapage/onto#processInput

Links an EA process or phase to the artifact types it consumes as input.
has domain
EA Process c
has range
EA Artifact c

process outputop back to ToC or Object Property ToC

IRI: https://meta.linked.archi/eaonapage/onto#processOutput

Links an EA process or phase to the artifact types it produces as output.
has domain
EA Process c
has range
EA Artifact c

process participantop back to ToC or Object Property ToC

IRI: https://meta.linked.archi/eaonapage/onto#processParticipant

Links an EA process to a participant role.
has domain
EA Process c
has range
EA Practice Participant c

process uses artifact typeop back to ToC or Object Property ToC

IRI: https://meta.linked.archi/eaonapage/onto#processUsesArtifactType

Links an EA process to the artifact types it uses.
has domain
EA Process c
has range
EA Artifact c

used in processop back to ToC or Object Property ToC

IRI: https://meta.linked.archi/eaonapage/onto#usedInProcess

Links an EA artifact type to the process that uses it.
has domain
EA Artifact c
has range
EA Process c

Data Properties

artifact focusdp back to ToC or Data Property ToC

IRI: https://meta.linked.archi/eaonapage/onto#artifactFocus

Whether an artifact is primarily business-focused (addressing business stakeholders and strategy) or IT-focused (addressing technology and implementation). Based on Kotusev's classification of EA artifacts.
has domain
EA Artifact c
has range
string

artifact lifecycledp back to ToC or Data Property ToC

IRI: https://meta.linked.archi/eaonapage/onto#artifactLifecycle

The temporal lifecycle of an artifact: permanent (Considerations, Standards), long-lived (Visions, Landscapes), or short-lived (Outlines, Designs).
has domain
EA Artifact c
has range
string

artifact naturedp back to ToC or Data Property ToC

IRI: https://meta.linked.archi/eaonapage/onto#artifactNature

The nature of what an artifact describes: rules (governance constraints), structures (architectural descriptions), or solutions (initiative/project deliverables). Based on Kotusev's three-way classification of EA artifacts.
has domain
EA Artifact c
has range
string

artifact scopedp back to ToC or Data Property ToC

IRI: https://meta.linked.archi/eaonapage/onto#artifactScope

The organizational scope of an artifact: organization-wide (Considerations, Standards, Visions, Landscapes) or initiative-scoped (Outlines, Designs).
has domain
EA Artifact c
has range
string

maturity benefitdp back to ToC or Data Property ToC

IRI: https://meta.linked.archi/eaonapage/onto#maturityBenefit

A benefit typically realized at a given maturity stage, based on empirical observation across organizations.
has domain
EA Maturity Stage c
has range
string

maturity challengedp back to ToC or Data Property ToC

IRI: https://meta.linked.archi/eaonapage/onto#maturityChallenge

A challenge typically faced at a given maturity stage, based on empirical observation across organizations.
has domain
EA Maturity Stage c
has range
string

tier leveldp back to ToC or Data Property ToC

IRI: https://meta.linked.archi/eaonapage/onto#tierLevel

The numeric level of an architecture tier in the governance hierarchy: 1 (enterprise), 2 (domain/segment), 3 (solution/project).
has domain
Architecture Tier c
has range
integer

usage frequencydp back to ToC or Data Property ToC

IRI: https://meta.linked.archi/eaonapage/onto#usageFrequency

How commonly the artifact is used across organizations: essential (majority), common (25-50%), or uncommon (10-25%). Based on empirical research across 27+ organizations.
has domain
EA Artifact c
has range
string

Legend back to ToC

c: Classes
op: Object Properties
dp: Data Properties
ni: Named Individuals

Acknowledgments back to ToC

The authors would like to thank Silvio Peroni for developing LODE, a Live OWL Documentation Environment, which is used for representing the Cross Referencing Section of this document and Daniel Garijo for developing Widoco, the program used to create the template used in this documentation.