@prefix aiact: . @prefix dcterms: . @prefix rdfs: . @prefix skos: . @prefix rdf: . @prefix owl: . @prefix vann: . @prefix foaf: . ################################################################################ # Ontology Metadata ################################################################################ a owl:Ontology ; dcterms:title "AIDOC-AP Requirements Ontology"@en ; dcterms:description "Formal representation of EU AI Act (Regulation 2024/1689) Annex IV technical documentation requirements with competency questions and lifecycle stage mappings."@en ; dcterms:creator [ rdf:type foaf:Person ; foaf:name "Sebastian Neumaier" ; foaf:mbox ; foaf:organization "University of Applied Sciences St. Pölten" ], [ rdf:type foaf:Person ; foaf:name "Timea Pahi" ; foaf:organization "University of Applied Sciences St. Pölten" ] ; dcterms:created "2025-11-20"^^ ; dcterms:modified "2025-11-20"^^ ; dcterms:license ; dcterms:source ; vann:preferredNamespacePrefix "aiact" ; vann:preferredNamespaceUri "https://w3id.org/aidoc-ap/requirements#" ; rdfs:seeAlso ; owl:versionInfo "1.0" . ################################################################################ # Classes ################################################################################ aiact:Requirement a rdfs:Class , owl:Class ; rdfs:label "AI Act Annex IV Requirement"@en ; rdfs:comment "A technical documentation requirement from EU AI Act Regulation (EU) 2024/1689, Annex IV. Each requirement specifies information that must be included in the technical documentation of high-risk AI systems."@en ; rdfs:isDefinedBy . aiact: a skos:ConceptScheme ; skos:prefLabel "AI Act Annex IV Requirements"@en ; skos:definition "A structured vocabulary of the technical documentation requirements from Annex IV of the EU AI Act (Regulation 2024/1689), organized by lifecycle stages and linked to competency questions."@en ; dcterms:source "EU AI Act 2024/1689, Annex IV" . aiact:CompetencyQuestion a rdfs:Class , owl:Class ; rdfs:label "Competency Question"@en ; rdfs:comment "A competency question that operationalizes an AI Act requirement by defining a specific query that can be answered using the technical documentation. Competency questions serve as validation criteria for requirement coverage."@en ; rdfs:isDefinedBy . ################################################################################ # Properties ################################################################################ aiact:hasCompetencyQuestion a rdf:Property , owl:ObjectProperty ; rdfs:label "has competency question"@en ; rdfs:comment "Links a requirement to its associated competency questions that operationalize and validate the requirement."@en ; rdfs:domain aiact:Requirement ; rdfs:range aiact:CompetencyQuestion ; rdfs:isDefinedBy . aiact:aiLifecycleStage a rdf:Property , owl:DatatypeProperty ; rdfs:label "AI lifecycle stage"@en ; rdfs:comment "The AI system development lifecycle stage(s) to which this requirement primarily applies. Values follow the pattern: Pipeline Type: Stage (e.g., 'ML Pipeline: Model Engineering', 'Data Pipeline: Exploration and Validation')."@en ; rdfs:domain aiact:Requirement ; rdfs:range rdfs:Literal ; rdfs:isDefinedBy . ################################################################################ # Requirements + Competency Questions ################################################################################ ### 1. General description of the AI system aiact:req1 a aiact:Requirement , skos:Concept ; skos:inScheme aiact: ; rdfs:label "General description of the AI system" ; dcterms:description "A general description of the AI system including its intended purpose, the name of the provider and the version of the system reflecting its relation to previous versions." ; dcterms:source "EU AI Act 2024/1689, Annex IV, Section 1(a)" ; aiact:aiLifecycleStage "Cross-cutting / All Pipelines" ; aiact:hasCompetencyQuestion aiact:cq1_1 , aiact:cq1_2 , aiact:cq1_3 . aiact:cq1_1 a aiact:CompetencyQuestion ; rdfs:label "What is the intended purpose of the AI system?" . aiact:cq1_2 a aiact:CompetencyQuestion ; rdfs:label "What is the name of the provider?" . aiact:cq1_3 a aiact:CompetencyQuestion ; rdfs:label "What is the version of the system and its relation to previous versions?" . ### 2. Interaction with hardware/software aiact:req2 a aiact:Requirement , skos:Concept ; skos:inScheme aiact: ; rdfs:label "Interaction with hardware/software" ; dcterms:description "How the AI system interacts with, or can be used to interact with, hardware or software, including with other AI systems, that are not part of the AI system itself, where applicable." ; dcterms:source "EU AI Act 2024/1689, Annex IV, Section 1(b)" ; aiact:aiLifecycleStage "Software Pipeline: Deployment" ; aiact:hasCompetencyQuestion aiact:cq2_1 . aiact:cq2_1 a aiact:CompetencyQuestion ; rdfs:label "What components or other systems does it depend on?" . ### 3. Software/firmware versioning aiact:req3 a aiact:Requirement , skos:Concept ; skos:inScheme aiact: ; rdfs:label "Software/firmware versioning" ; dcterms:description "The versions of relevant software or firmware, and any requirements related to version updates." ; dcterms:source "EU AI Act 2024/1689, Annex IV, Section 1(c)" ; aiact:aiLifecycleStage "ML Pipeline: Model Versioning" ; aiact:hasCompetencyQuestion aiact:cq3_1 . aiact:cq3_1 a aiact:CompetencyQuestion ; rdfs:label "What software dependencies are used? How are versions tracked and updated?" . ### 4. Deployment forms aiact:req4 a aiact:Requirement, skos:Concept ; skos:inScheme aiact: ; rdfs:label "Deployment forms" ; dcterms:description "The description of all the forms in which the AI system is placed on the market or put into service, such as software packages embedded into hardware, downloads, or APIs." ; dcterms:source "EU AI Act 2024/1689, Annex IV, Section 1(d)" ; aiact:aiLifecycleStage "Software Pipeline: Deployment" ; aiact:hasCompetencyQuestion aiact:cq4_1 . aiact:cq4_1 a aiact:CompetencyQuestion ; rdfs:label "How is the AI system provided to users?" . ### 5. Hardware required aiact:req5 a aiact:Requirement, skos:Concept ; skos:inScheme aiact: ; rdfs:label "Hardware required" ; dcterms:description "The description of the hardware on which the AI system is intended to run." ; dcterms:source "EU AI Act 2024/1689, Annex IV, Section 1(e)" ; aiact:aiLifecycleStage "Software Pipeline: Deployment" ; aiact:hasCompetencyQuestion aiact:cq5_1 . aiact:cq5_1 a aiact:CompetencyQuestion ; rdfs:label "What hardware does the AI system need to run?" . ### 6. Illustrations and markings aiact:req6 a aiact:Requirement , skos:Concept ; skos:inScheme aiact: ; rdfs:label "Illustrations and markings" ; dcterms:description "Where the AI system is a component of products, photographs or illustrations showing external features, the marking and internal layout of those products." ; dcterms:source "EU AI Act 2024/1689, Annex IV, Section 1(f)" ; aiact:aiLifecycleStage "Software Pipeline: Deployment" ; aiact:hasCompetencyQuestion aiact:cq6_1 , aiact:cq6_2 , aiact:cq6_3 , aiact:cq6_4 . aiact:cq6_1 a aiact:CompetencyQuestion ; rdfs:label "What is the physical form of the product?" . aiact:cq6_2 a aiact:CompetencyQuestion ; rdfs:label "What visual documentation (photographs, diagrams) exists showing external features?" . aiact:cq6_3 a aiact:CompetencyQuestion ; rdfs:label "What markings (CE, labels) are present on the product?" . aiact:cq6_4 a aiact:CompetencyQuestion ; rdfs:label "How is the internal layout or component arrangement documented?" . ### 7. User interface and instructions for use aiact:req7 a aiact:Requirement , skos:Concept ; skos:inScheme aiact: ; rdfs:label "User interface and instructions for use" ; dcterms:description "A basic description of the user-interface provided to the deployer; instructions for use for the deployer, and a basic description of the user-interface provided to the deployer, where applicable." ; dcterms:source "EU AI Act 2024/1689, Annex IV, Section 1(g) and 1(h)" ; aiact:aiLifecycleStage "Software Pipeline: Deployment" ; aiact:hasCompetencyQuestion aiact:cq7_1 , aiact:cq7_2 . aiact:cq7_1 a aiact:CompetencyQuestion ; rdfs:label "What interface is provided for operators or deployers?" . aiact:cq7_2 a aiact:CompetencyQuestion ; rdfs:label "What instructions for use are provided to the deployer?" . ### 8. Elements of system and development process aiact:req8 a aiact:Requirement , skos:Concept ; skos:inScheme aiact: ; rdfs:label "Elements of system and development process" ; dcterms:description "The methods and steps performed for the development of the AI system, including, where relevant, recourse to pre-trained systems or tools provided by third parties and how those were used, integrated or modified by the provider." ; dcterms:source "EU AI Act 2024/1689, Annex IV, Section 2(a)" ; aiact:aiLifecycleStage "ML Pipeline: Model Engineering" ; aiact:hasCompetencyQuestion aiact:cq8_1 . aiact:cq8_1 a aiact:CompetencyQuestion ; rdfs:label "What are the components and steps of development?" . ### 9. Design specifications of the system aiact:req9 a aiact:Requirement , skos:Concept ; skos:inScheme aiact: ; rdfs:label "Design specifications of the system" ; dcterms:description "The design specifications of the system, namely the general logic of the AI system and of the algorithms; the key design choices including the rationale and assumptions made, including with regard to persons or groups of persons in respect of who, the system is intended to be used; the main classification choices; what the system is designed to optimise for, and the relevance of the different parameters; the description of the expected output and output quality of the system; the decisions about any possible trade-off made regarding the technical solutions adopted to comply with the requirements set out in Chapter III, Section 2." ; dcterms:source "EU AI Act 2024/1689, Annex IV, Section 2(b)" ; aiact:aiLifecycleStage "ML Pipeline: Model Engineering" ; aiact:hasCompetencyQuestion aiact:cq9_1 , aiact:cq9_2 , aiact:cq9_3 , aiact:cq9_4 , aiact:cq9_5 , aiact:cq9_6 , aiact:cq9_7 . aiact:cq9_1 a aiact:CompetencyQuestion ; rdfs:label "What is the general logic of the AI system and of the algorithms?" . aiact:cq9_2 a aiact:CompetencyQuestion ; rdfs:label "What are the key design choices including the rationale and assumptions made?" . aiact:cq9_3 a aiact:CompetencyQuestion ; rdfs:label "With regard to which persons or groups of persons is the system intended to be used?" . aiact:cq9_4 a aiact:CompetencyQuestion ; rdfs:label "What are the main classification choices?" . aiact:cq9_5 a aiact:CompetencyQuestion ; rdfs:label "What is the system designed to optimise for, and what is the relevance of the different parameters?" . aiact:cq9_6 a aiact:CompetencyQuestion ; rdfs:label "What is the description of the expected output and output quality of the system?" . aiact:cq9_7 a aiact:CompetencyQuestion ; rdfs:label "What decisions about any possible trade-off were made regarding the technical solutions adopted to comply with Chapter III, Section 2 requirements?" . ### 10. System architecture aiact:req10 a aiact:Requirement , skos:Concept ; skos:inScheme aiact: ; rdfs:label "System architecture" ; dcterms:description "The description of the system architecture explaining how software components build on or feed into each other and integrate into the overall processing; the computational resources used to develop, train, test and validate the AI system." ; dcterms:source "EU AI Act 2024/1689, Annex IV, Section 2(c)" ; aiact:aiLifecycleStage "ML Pipeline: Model Engineering" ; aiact:hasCompetencyQuestion aiact:cq10_1 , aiact:cq10_2 , aiact:cq10_3 , aiact:cq10_4 . aiact:cq10_1 a aiact:CompetencyQuestion ; rdfs:label "What is the architecture and what algorithms are used?" . aiact:cq10_2 a aiact:CompetencyQuestion ; rdfs:label "Which software components make up the system and how are they connected?" . aiact:cq10_3 a aiact:CompetencyQuestion ; rdfs:label "How do software components feed into each other and into the overall processing pipeline?" . aiact:cq10_4 a aiact:CompetencyQuestion ; rdfs:label "Which computational resources are used for development, training, testing and validation?" . ### 11. Data requirements aiact:req11 a aiact:Requirement , skos:Concept ; skos:inScheme aiact: ; rdfs:label "Data requirements" ; dcterms:description "Where relevant, the data requirements in terms of datasheets describing the training methodologies and techniques and the training data sets used, including a general description of these data sets, information about their provenance, scope and main characteristics; how the data was obtained and selected; labelling procedures (e.g. for supervised learning), data cleaning methodologies (e.g. outliers detection)." ; dcterms:source "EU AI Act 2024/1689, Annex IV, Section 2(d)" ; aiact:aiLifecycleStage "Data Pipeline: Exploration and Validation" ; aiact:hasCompetencyQuestion aiact:cq11_1 , aiact:cq11_2 , aiact:cq11_3 , aiact:cq11_4 , aiact:cq11_5 . aiact:cq11_1 a aiact:CompetencyQuestion ; rdfs:label "What are the datasheets describing the training methodologies and techniques?" . aiact:cq11_2 a aiact:CompetencyQuestion ; rdfs:label "What are the training data sets used, including their provenance, scope and main characteristics?" . aiact:cq11_3 a aiact:CompetencyQuestion ; rdfs:label "How was the data obtained and selected?" . aiact:cq11_4 a aiact:CompetencyQuestion ; rdfs:label "What are the labelling procedures?" . aiact:cq11_5 a aiact:CompetencyQuestion ; rdfs:label "What are the data cleaning methodologies?" . ### 12. Assessment of human oversight measures aiact:req12 a aiact:Requirement , skos:Concept ; skos:inScheme aiact: ; rdfs:label "Assessment of human oversight measures" ; dcterms:description "Assessment of the human oversight measures needed in accordance with Article 14, including an assessment of the technical measures needed to facilitate the interpretation of the outputs of AI systems by the deployers, in accordance with Article 13(3), point (d)." ; dcterms:source "EU AI Act 2024/1689, Annex IV, Section 2(e)" ; aiact:aiLifecycleStage "ML Pipeline: Model Evaluation" ; aiact:hasCompetencyQuestion aiact:cq12_1 , aiact:cq12_2 . aiact:cq12_1 a aiact:CompetencyQuestion ; rdfs:label "What human oversight measures are needed in accordance with Article 14?" . aiact:cq12_2 a aiact:CompetencyQuestion ; rdfs:label "What technical measures are needed to facilitate the interpretation of the outputs by deployers?" . ### 13. Pre-determined changes to the AI system aiact:req13 a aiact:Requirement , skos:Concept ; skos:inScheme aiact: ; rdfs:label "Pre-determined changes to the AI system" ; dcterms:description "Where applicable, a detailed description of pre-determined changes to the AI system and its performance, together with all the relevant information related to the technical solutions adopted to ensure continuous compliance of the AI system with the relevant requirements set out in Chapter III, Section 2." ; dcterms:source "EU AI Act 2024/1689, Annex IV, Section 2(f)" ; aiact:aiLifecycleStage "Cross-cutting / All Pipelines" ; aiact:hasCompetencyQuestion aiact:cq13_1 , aiact:cq13_2 . aiact:cq13_1 a aiact:CompetencyQuestion ; rdfs:label "What are the pre-determined changes to the AI system and its performance?" . aiact:cq13_2 a aiact:CompetencyQuestion ; rdfs:label "What technical solutions are adopted to ensure continuous compliance?" . ### 14. Validation and testing procedures aiact:req14 a aiact:Requirement , skos:Concept ; skos:inScheme aiact: ; rdfs:label "Validation and testing procedures" ; dcterms:description "The validation and testing procedures used, including information about the validation and testing data used and their main characteristics; metrics used to measure accuracy, robustness and compliance with other relevant requirements set out in Chapter III, Section 2, as well as potentially discriminatory impacts; test logs and all test reports dated and signed by the responsible persons, including with regard to predetermined changes as referred to under point (f)." ; dcterms:source "EU AI Act 2024/1689, Annex IV, Section 2(g)" ; aiact:aiLifecycleStage "ML Pipeline: Model Evaluation" ; aiact:hasCompetencyQuestion aiact:cq14_1 , aiact:cq14_2 , aiact:cq14_3 , aiact:cq14_4 . aiact:cq14_1 a aiact:CompetencyQuestion ; rdfs:label "What validation and testing procedures are used?" . aiact:cq14_2 a aiact:CompetencyQuestion ; rdfs:label "What are the validation and testing data used and their main characteristics?" . aiact:cq14_3 a aiact:CompetencyQuestion ; rdfs:label "What metrics are used to measure accuracy, robustness and compliance, as well as potentially discriminatory impacts?" . aiact:cq14_4 a aiact:CompetencyQuestion ; rdfs:label "Are test logs and test reports available, dated and signed by responsible persons?" . ### 15. Cybersecurity measures aiact:req15 a aiact:Requirement , skos:Concept ; skos:inScheme aiact: ; rdfs:label "Cybersecurity measures" ; dcterms:description "Cybersecurity measures put in place." ; dcterms:source "EU AI Act 2024/1689, Annex IV, Section 2(h)" ; aiact:aiLifecycleStage "Software Pipeline: Build and Deployment" ; aiact:hasCompetencyQuestion aiact:cq15_1 . aiact:cq15_1 a aiact:CompetencyQuestion ; rdfs:label "What cybersecurity measures are put in place?" . ### 16. Monitoring, functioning and control aiact:req16 a aiact:Requirement , skos:Concept ; skos:inScheme aiact: ; rdfs:label "Monitoring, functioning and control" ; dcterms:description "Detailed information about the monitoring, functioning and control of the AI system, in particular with regard to: its capabilities and limitations in performance, including the degrees of accuracy for specific persons or groups of persons on which the system is intended to be used and the overall expected level of accuracy in relation to its intended purpose; the foreseeable unintended outcomes and sources of risks to health and safety, fundamental rights and discrimination in view of the intended purpose of the AI system; the human oversight measures needed in accordance with Article 14, including the technical measures put in place to facilitate the interpretation of the outputs of AI systems by the deployers; specifications on input data, as appropriate." ; dcterms:source "EU AI Act 2024/1689, Annex IV, Section 3" ; aiact:aiLifecycleStage "Cross-cutting / All Pipelines" ; aiact:hasCompetencyQuestion aiact:cq16_1 , aiact:cq16_2 , aiact:cq16_3 . aiact:cq16_1 a aiact:CompetencyQuestion ; rdfs:label "What are the capabilities and limitations in performance, including degrees of accuracy for specific persons or groups?" . aiact:cq16_2 a aiact:CompetencyQuestion ; rdfs:label "What are the foreseeable unintended outcomes and sources of risks to health and safety, fundamental rights and discrimination?" . aiact:cq16_3 a aiact:CompetencyQuestion ; rdfs:label "What human oversight measures and technical measures for output interpretation are needed?" . ### 17. Appropriateness of performance metrics aiact:req17 a aiact:Requirement , skos:Concept ; skos:inScheme aiact: ; rdfs:label "Appropriateness of performance metrics" ; dcterms:description "A description of the appropriateness of the performance metrics for the specific AI system." ; dcterms:source "EU AI Act 2024/1689, Annex IV, Section 4" ; aiact:aiLifecycleStage "ML Pipeline: Model Evaluation" ; aiact:hasCompetencyQuestion aiact:cq17_1 . aiact:cq17_1 a aiact:CompetencyQuestion ; rdfs:label "What is the description of the appropriateness of the performance metrics for the specific AI system?" . ### 18. Risk management aiact:req18 a aiact:Requirement , skos:Concept ; skos:inScheme aiact: ; rdfs:label "Risk management" ; dcterms:description "A detailed description of the risk management system in accordance with Article 9." ; dcterms:source "EU AI Act 2024/1689, Annex IV, Section 5" ; aiact:aiLifecycleStage "Cross-cutting / All Pipelines" ; aiact:hasCompetencyQuestion aiact:cq18_1 . aiact:cq18_1 a aiact:CompetencyQuestion ; rdfs:label "What is the detailed description of the risk management system in accordance with Article 9?" . ### 19. Changes to the AI system throughout its lifecycle aiact:req19 a aiact:Requirement , skos:Concept ; skos:inScheme aiact: ; rdfs:label "Changes to the AI system throughout its lifecycle" ; dcterms:description "A description of relevant changes made by the provider to the system through its lifecycle." ; dcterms:source "EU AI Act 2024/1689, Annex IV, Section 6" ; aiact:aiLifecycleStage "Cross-cutting / All Pipelines" ; aiact:hasCompetencyQuestion aiact:cq19_1 . aiact:cq19_1 a aiact:CompetencyQuestion ; rdfs:label "What changes have been made to the system through its lifecycle?" . ### 20. Harmonised standards and common specifications aiact:req20 a aiact:Requirement , skos:Concept ; skos:inScheme aiact: ; rdfs:label "Harmonised standards and common specifications" ; dcterms:description "List of the harmonised standards applied in full or in part the references of which have been published in the Official Journal of the European Union; where no such harmonised standards have been applied, a detailed description of the solutions adopted to meet the requirements set out in Chapter III, Section 2, including a list of other relevant standards and technical specifications applied." ; dcterms:source "EU AI Act 2024/1689, Annex IV, Section 7" ; aiact:aiLifecycleStage "Cross-cutting / All Pipelines" ; aiact:hasCompetencyQuestion aiact:cq20_1 , aiact:cq20_2 . aiact:cq20_1 a aiact:CompetencyQuestion ; rdfs:label "What harmonised standards have been applied in full or in part?" . aiact:cq20_2 a aiact:CompetencyQuestion ; rdfs:label "If no harmonised standards are applied, what solutions are adopted to meet Chapter III, Section 2 requirements?" . ### 21. EU declaration of conformity aiact:req21 a aiact:Requirement , skos:Concept ; skos:inScheme aiact: ; rdfs:label "EU declaration of conformity" ; dcterms:description "A copy of the EU declaration of conformity referred to in Article 47." ; dcterms:source "EU AI Act 2024/1689, Annex IV, Section 8" ; aiact:aiLifecycleStage "Cross-cutting / All Pipelines" ; aiact:hasCompetencyQuestion aiact:cq21_1 . aiact:cq21_1 a aiact:CompetencyQuestion ; rdfs:label "Is there a copy of the EU declaration of conformity?" . ### 22. Post-market monitoring system aiact:req22 a aiact:Requirement, skos:Concept ; skos:inScheme aiact: ; rdfs:label "Post-market monitoring system" ; dcterms:description "A detailed description of the system in place to evaluate the AI system performance in the post-market phase in accordance with Article 72, including the post-market monitoring plan referred to in Article 72(3)." ; dcterms:source "EU AI Act 2024/1689, Annex IV, Section 9" ; aiact:aiLifecycleStage "Software Pipeline: Deployment" ; aiact:hasCompetencyQuestion aiact:cq22_1 , aiact:cq22_2 . aiact:cq22_1 a aiact:CompetencyQuestion ; rdfs:label "What system is established to evaluate the AI system performance in the post-market phase?" . aiact:cq22_2 a aiact:CompetencyQuestion ; rdfs:label "Is there a post-market monitoring plan as referred to in Article 72(3)?" . ################################################################################ # End of document ################################################################################