AI Governance Engineer
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AI system

By Updated

For governance, the object the AI definition brings into scope. Under the EU AI Act, a machine-based system designed to operate with some autonomy, possibly adaptive after deployment, that infers from its input how to generate outputs that can influence physical or virtual environments 12. Inference separates it from rule-based software.

Developed in
ch. 11, Four definitions, compared
ch. 18, What counts as an AI system
Chapters
ch. 11, AI Defined · ch. 18, EU AI Act
Source
2 numbered references, listed below

Where it is used

23 chapters of the Body of Knowledge use the term. Each link opens the first section that does.

AI system: mentions per chapter208 mentions of the term across 23 of the 23 chapters of the Body of Knowledge; the chapters the glossary cross-references are drawn solid.Cross-referenced chapterOther chapter00 Preface: 2 mentions00 Preface201 Definition: 8 mentions01 Definition802 Why Now: 1 mention02 Why Now103 Values & Principles: 2 mentions03 Values & Principles204 The Stack: 2 mentions04 The Stack205 Patterns: 6 mentions05 Patterns606 The Role: 1 mention06 The Role107 Maturity Model: 2 mentions07 Maturity Model208 Regulatory Map: 28 mentions08 Regulatory Map2810 Reading List: 8 mentions10 Reading List811 AI Defined: 21 mentions11 AI Defined2112 Governance Program: 8 mentions12 Governance Program813 Risk Management: 4 mentions13 Risk Management414 Development: 13 mentions14 Development1315 Deployment: 8 mentions15 Deployment816 Fairness & XAI: 8 mentions16 Fairness & XAI817 Incidents: 7 mentions17 Incidents718 EU AI Act: 20 mentions18 EU AI Act2019 Privacy & AI: 7 mentions19 Privacy & AI720 Existing Law: 13 mentions20 Existing Law1321 AI Laws Worldwide: 9 mentions21 AI Laws Worldwide922 Principles & Standards: 24 mentions22 Principles & Standards2423 AI Agents: 6 mentions23 AI Agents6Source: the Body of Knowledgev0.5.0
AI system: mentions per chapter208 mentions of the term across 23 of the 23 chapters of the Body of Knowledge; the chapters the glossary cross-references are drawn solid.Cross-referenced chapterOther chapter00 Preface: 2 mentions20001 Definition: 8 mentions80102 Why Now: 1 mention10203 Values & Principles: 2 mentions20304 The Stack: 2 mentions20405 Patterns: 6 mentions60506 The Role: 1 mention10607 Maturity Model: 2 mentions20708 Regulatory Map: 28 mentions280810 Reading List: 8 mentions81011 AI Defined: 21 mentions211112 Governance Program: 8 mentions81213 Risk Management: 4 mentions41314 Development: 13 mentions131415 Deployment: 8 mentions81516 Fairness & XAI: 8 mentions81617 Incidents: 7 mentions71718 EU AI Act: 20 mentions201819 Privacy & AI: 7 mentions71920 Existing Law: 13 mentions132021 AI Laws Worldwide: 9 mentions92122 Principles & Standards: 24 mentions242223 AI Agents: 6 mentions623Source: the Body of Knowledge v0.5.0
Mentions per chapter How often each chapter names the term, with the chapters the glossary cross-references drawn solid. The longest bar is where to read the term in use; bars spread across many chapters mark a term that runs through the discipline.
Mentions as a table
Mentions of AI system per chapter
ChapterMentionsCross-referenced
00 Preface2No
01 Definition8No
02 Why Now1No
03 Values & Principles2No
04 The Stack2No
05 Patterns6No
06 The Role1No
07 Maturity Model2No
08 Regulatory Map28No
10 Reading List8No
11 AI Defined21Yes
12 Governance Program8No
13 Risk Management4No
14 Development13No
15 Deployment8No
16 Fairness & XAI8No
17 Incidents7No
18 EU AI Act20Yes
19 Privacy & AI7No
20 Existing Law13No
21 AI Laws Worldwide9No
22 Principles & Standards24No
23 AI Agents6No

Patterns that use this term

19 pattern pages use the term; the 10 that use it most:

AI system: related terms and patternsThe term at the centre; related terms on solid edges, the terms it is contrasted with on dashed edges, and the patterns that use it most in the colour of their layer.RelatedColour: stack layer of the pattern01 Govern-as-Code02 Inventory05 AssuranceAI systemRelated terms (8)AI system impact assessment · RelatedAI system impact assessmentDeployment Decision Record (DDR) · RelatedDeployment Decision RecordEU declaration of conformity · RelatedEU declaration of conformityLocalisation (by jurisdiction) · RelatedLocalisation (by jurisdiction)OECD Framework for the Classification of AI Systems · RelatedOECD FrameworkReasonably foreseeable misuse · RelatedReasonably foreseeable misuseTechnical documentation (Annex IV) · RelatedTechnical documentationTesting in real-world conditions · RelatedTesting in real-world conditionsPatterns using it most (6)AI Threat Model, 4 mentions · Uses the termAI Threat ModelAIBOM, 5 mentions · Uses the termAIBOMDisclosure & Notification Pipeline, 4 mentions · Uses the termDisclosure & Notification…FRIA-as-Code, 4 mentions · Uses the termFRIA-as-CodePolicy Card, 3 mentions · Uses the termPolicy CardVendor / Model Due-Diligence Gate, 3 mentions · Uses the termVendor / Model Due-Diligence
AI system: related terms and patternsThe term at the centre; related terms on solid edges, the terms it is contrasted with on dashed edges, and the patterns that use it most in the colour of their layer.RelatedColour: stack layer of the pattern01 Govern-as-Code02 Inventory05 AssuranceRelated terms (8)AI system impact assessment · RelatedAI system impact assessmentDeployment Decision Record (DDR) · RelatedDeployment Decision RecordEU declaration of conformity · RelatedEU declaration of conformityLocalisation (by jurisdiction) · RelatedLocalisation (by jurisdiction)OECD Framework for the Classification of AI Systems · RelatedOECD FrameworkReasonably foreseeable misuse · RelatedReasonably foreseeable misuseTechnical documentation (Annex IV) · RelatedTechnical documentationTesting in real-world conditions · RelatedTesting in real-world conditionsPatterns using it most (6)AI Threat Model, 4 mentions · Uses the termAI Threat ModelAIBOM, 5 mentions · Uses the termAIBOMDisclosure & Notification Pipeline, 4 mentions · Uses the termDisclosure & Notification…FRIA-as-Code, 4 mentions · Uses the termFRIA-as-CodePolicy Card, 3 mentions · Uses the termPolicy CardVendor / Model Due-Diligence Gate, 3 mentions · Uses the termVendor / Model Due-DiligenceAI system
The term's neighbourhood Terms related to this one on solid edges, terms it is often confused with on dashed edges, and the patterns that use it most in the colour of their layer. Follow a dashed edge to check the distinction before you use either term.
Neighbourhood as a table
Neighbourhood of AI system
FamilyItemRelation
Related termsAI system impact assessmentRelated
Related termsDeployment Decision Record (DDR)Related
Related termsEU declaration of conformityRelated
Related termsLocalisation (by jurisdiction)Related
Related termsOECD Framework for the Classification of AI SystemsRelated
Related termsReasonably foreseeable misuseRelated
Related termsTechnical documentation (Annex IV)Related
Related termsTesting in real-world conditionsRelated
Patterns using it mostAI Threat Model, 4 mentionsUses the term
Patterns using it mostAIBOM, 5 mentionsUses the term
Patterns using it mostDisclosure & Notification Pipeline, 4 mentionsUses the term
Patterns using it mostFRIA-as-Code, 4 mentionsUses the term
Patterns using it mostPolicy Card, 3 mentionsUses the term
Patterns using it mostVendor / Model Due-Diligence Gate, 3 mentionsUses the term
  • OECD Framework for the Classification of AI Systems

    An OECD tool (2022) for characterising an AI system from a policy perspective along five dimensions: People & Planet, Economic Context, Data & Input, AI…

  • Technical documentation (Annex IV)

    The provider's technical file for a high-risk AI system, drawn up before placing on the market and kept up to date under Article 11: description, development…

  • Deployment Decision Record (DDR)

    The artefact that records the decision to deploy an AI system: objective, the people it acts on, negative space, risk tier and obligations, per-group…

  • Testing in real-world conditions

    Under the EU AI Act, temporary testing of an AI system for its intended purpose outside a laboratory, under a plan approved by the market surveillance…

  • Localisation (by jurisdiction)

    Controlling where an AI system runs and which features it offers in each jurisdiction, with per-jurisdiction rule sets as code, regional instances where…

  • Reasonably foreseeable misuse

    Use of an AI system not in accordance with its intended purpose that may result from reasonably foreseeable human behaviour or interaction with other systems…

  • EU declaration of conformity

    The provider's signed statement, following AI Act Annex V, that a high-risk AI system meets the Act's requirements; drawn up after the conformity assessment…

  • AI system impact assessment

    An assessment of how an AI system and its foreseeable applications may affect individuals, groups and society, performed across the lifecycle and updated as…

Sources

  1. [1] Regulation (EU) 2024/1689 (AI Act), consolidated text as amended by Regulation (EU) 2026/1744 (Digital Omnibus on AI, in force 27 Jul 2026; definitions in Art. 3, incl. 3(1), 3(3) to 3(14), 3(14b), 3(20), 3(22), 3(23), 3(29) to 3(32), 3(49), 3(55) to 3(57), 3(60), 3(61), 3(63), 3(68); Arts. 4, 5, 6 (incl. 6(3) third subparagraph, profiling), 9, 10, 11, 13, 14, 15, 17, 22 to 27 (incl. 26(11)), 40, 41, 43, 47, 48, 50, 53 (incl. 53(1)(c)), 55, 57, 60, 72, 73, 86; Annexes I, III, IV). Publications Office of the EU (EUR-Lex). 2026-07-27. https://eur-lex.europa.eu/eli/reg/2024/1689/2026-07-27/eng (verified: primary)
  2. [2] Commission Guidelines on the definition of an artificial intelligence system established by Regulation (EU) 2024/1689 (C(2025) 5053 final; non-binding; seven elements of Art. 3(1), inference as the indispensable condition; exclusions). European Commission. 2025-02-06. https://digital-strategy.ec.europa.eu/en/library/commission-publishes-guidelines-ai-system-definition-facilitate-first-ai-acts-rules-application (verified: primary)

Definitions of legal terms paraphrase the cited text, which governs. Dated statements are as of .

Cite this term

García Aibar, J. (2026). AI system. In AI Governance Engineering: The Thesis & Body of Knowledge (v0.5.0), Glossary. https://doi.org/10.5281/zenodo.22956197. https://aigovernanceengineer.com/glossary/ai-system. CC BY 4.0

BibTeX

@misc{aige2026aisystem,
  author  = {Jorge García Aibar},
  title   = {{AI system}},
  note    = {Glossary, AI Governance Engineering: The Thesis \& Body of Knowledge, version 0.5.0},
  year    = {2026},
  doi     = {10.5281/zenodo.22956197},
  url     = {https://aigovernanceengineer.com/glossary/ai-system}
}