exported equivalent COPI_0000091
Instrument
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000091
Generated onGerado em 2026-05-02
Natural Language DefinitionDefinição em Linguagem Natural
EN
An instrument is a material artifact that has the designed function to perform measurement, monitoring, or control of process variables.
PT-BR
Um instrumento é um artefato material que tem a função projetada de realizar medição, monitoramento ou controle de variáveis de processo.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every instrument is a material artifact that has an instrumentation function, and every material artifact that has an instrumentation function is an instrument.
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Definition]∀x (Instrument(x) ↔ MaterialArtifact(x) ∧ ∃f (InstrumentationFunction(f) ∧ bearerOf(x,f))) — Steps 1–3: genus + identity-giving function [Function axiom: InstrumentationFunction]∀f (InstrumentationFunction(f) → ∀p (realizedIn(f,p) → InstrumentationProcess(p)) ∧ ∃p (InstrumentationProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Process participation signature]∀x ∀f ((Instrument(x) ∧ InstrumentationFunction(f) ∧ bearerOf(x,f)) → ∃m (ProcessVariable(m) ∧ participatesIn(m,f)) ∧ ∃e (InformationSignal(e) ∧ participatesIn(e,f)) ∧ processType(f,MeasurementTransduction)) — Step 5: typed participants in the realising process
OWL 2 / Turtle
@prefix copi: <https://www.inf.ufrgs.br/ontologies/copi/> . @prefix : <https://www.inf.ufrgs.br/ontologies/copi/> . @prefix owl: <http://www.w3.org/2002/07/owl#> . @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . @prefix xsd: <http://www.w3.org/2001/XMLSchema#> . @prefix bfo: <http://purl.obolibrary.org/obo/> . @prefix iof-core: <https://spec.industrialontologies.org/ontology/construct/> . @prefix iof-av: <https://spec.industrialontologies.org/ontology/annotation/> . @prefix skos: <http://www.w3.org/2004/02/skos/core#> . @prefix qudt: <http://qudt.org/schema/qudt/> . @prefix dcterms: <http://purl.org/dc/terms/> . @prefix foaf: <http://xmlns.com/foaf/0.1/> . @prefix apv: <http://inf.ufrgs.br/ontologies/apv#> . ### COPI — Core Ontology for Petroleum Installations ### Class module: Instrument <https://www.inf.ufrgs.br/ontologies/copi> rdf:type owl:Ontology ; dcterms:title "Core Ontology for Petroleum Installations (COPI)"@en ; dcterms:title "Ontologia Core para Instalações de Petróleo (COPI)"@pt-br ; dcterms:description "BFO/IOF-Core conformant ontology of equipment classes for petroleum production plants, developed using the five-step RDL enrichment method."@en ; skos:scopeNote "Material artifacts (bfo:material_entity) that (i) are part of a petroleum production plant, and (ii) bear at least one function whose realization involves the transport (e.g. production and injection), processing (separation and other processes), control, monitoring, measurement, containment or offloading of material or energy."@en ; skos:scopeNote "Artefatos materiais (bfo:material_entity) que (i) fazem parte de uma planta de produção de petróleo, e (ii) possuem ao menos uma função cuja realização envolve o transporte (p. ex. produção e injeção), processamento (separação e outros processos), controle, monitoramento, medição, contenção ou escoamento de material ou energia."@pt-br ; skos:scopeNote "COPI provides high-level equipment categories defined by function to demonstrate the defined-class mechanism. Equipment subtypes are annotated with references to CFIHOS and PCA RDL terms. COPI is not a reference data library; organizations should use CFIHOS, PCA RDL, or ISO 14224 for comprehensive equipment classification."@en ; skos:scopeNote "COPI fornece categorias de alto nível de equipamentos definidas por função para demonstrar o mecanismo de classe definida. Os subtipos de equipamentos são anotados com referências aos termos do CFIHOS e do PCA RDL. COPI não é uma biblioteca de dados de referência; organizações devem utilizar o CFIHOS, o PCA RDL ou a ISO 14224 para classificação abrangente de equipamentos."@pt-br ; owl:versionInfo "1.1.0-104-g4d16eff" ; owl:imports <https://spec.industrialontologies.org/ontology/core/Core/> ; owl:imports <http://purl.obolibrary.org/obo/bfo/2020/bfo.owl> ; dcterms:creator "Nicolau Oyhenard dos Santos"@en ; dcterms:contributor "Cauã Antunes" ; dcterms:contributor "Haroldo Rojas" ; dcterms:contributor "Rafael Petry" ; dcterms:contributor "Régis Romeu" ; dcterms:contributor "Mara Abel" ; dcterms:isPartOf <https://inf.ufrgs.br/projetos/OntoKG> ; dcterms:publisher "Universidade Federal do Rio Grande do Sul (UFRGS)"@en ; dcterms:license <https://creativecommons.org/licenses/by/4.0/> ; dcterms:created "2026-04-08"^^xsd:date ; dcterms:modified "2026-07-13"^^xsd:date ; apv:GlobalMinLanguageCoverage "en pt-br" ; apv:ClassURIFormationRule "https://www[.]inf[.]ufrgs[.]br/ontologies/copi/(COPI_[0-9]{7}|[A-Z][A-Za-z0-9]*)" ; apv:ClassMinAnnotationCoverage "rdfs:label https://spec.industrialontologies.org/ontology/annotation/naturalLanguageDefinition" . iof-av:naturalLanguageDefinition rdf:type owl:AnnotationProperty ; apv:MinAnnotationLength 20 . ### Identity-giving function :InstrumentationFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :InstrumentationProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :InstrumentationProcess ] ; rdfs:label "instrumentation function"@en ; rdfs:label "função de instrumentação"@pt-br . ### Process type :InstrumentationProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "instrumentation process"@en ; rdfs:label "processo de instrumentação"@pt-br . :InstrumentationProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :ProcessVariable ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :InformationSignal ] . ### Equipment universal: Instrument :Instrument rdf:type owl:Class ; owl:equivalentClass [ rdf:type owl:Class ; owl:intersectionOf ( iof-core:MaterialArtifact [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :InstrumentationFunction ] ) ] ; rdfs:label "instrument"@en ; rdfs:label "instrumento"@pt-br ; iof-av:naturalLanguageDefinition "An instrument is a material artifact that has the designed function to perform measurement, monitoring, or control of process variables."@en ; skos:definition "An instrument is a material artifact that has the designed function to perform measurement, monitoring, or control of process variables."@en ; iof-av:naturalLanguageDefinition "Um instrumento é um artefato material que tem a função projetada de realizar medição, monitoramento ou controle de variáveis de processo."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every instrument is a material artifact that has an instrumentation function, and every material artifact that has an instrumentation function is an instrument."@en ; iof-av:firstOrderLogicAxiom "∀x(Instrument(x) ↔ (Assembly(x) ∧ ∃f(InstrumentationFunction(f) ∧ hasFunction(x,f))))"@en ;
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
InstrumentationFunction ⊑ DesignedFunction
Realized in
InstrumentationProcess ⊑ PlannedProcess
The identity-giving function encompasses measurement, monitoring, and control of process variables. This is the broadest instrumentation function that unifies all instrument types - from simple indicators to complex control systems. All instruments exist to participate in instrumentation processes.
2 Genus DeterminationDeterminação do Gênero
MaterialArtifactbfo:Object (BFO_0000030)
No specific instrumentation genus exists in parent_candidates, so we use IOF-Core root directly. Instruments are typically causally unified artifacts with physically connected removable subcomponents (housings, sensing elements, electronics, displays, etc.) that can be assembled, disassembled and maintained as single units.
3 Differentia SpecificaDiferença Específica
∃hasFunction.InstrumentationFunction

An instrument is distinguished from other assemblies by being designed to perform measurement, monitoring, or control of process variables.

The ISA definition clearly states instruments are distinguished by their function to measure, monitor, and/or control variables. This functional differentia is both necessary (all instruments must have this capability) and sufficient (any assembly with this function is by definition an instrument).
4 Necessary PartsPartes Necessárias

No necessary parts recorded.

These are the minimal universal parts - every instrument needs to sense variables and process those signals, though the implementation varies greatly across instrument types.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'ProcessVariable', 'count': '1+', 'constraints': 'measurable physical property'}
OutputsSaídas
{'type': 'InformationSignal', 'count': '1+', 'constraints': 'indication, recording, or control signal'}
TransformationTransformação
variable detection and signal conversion - physical variable states are transduced into information signals
Instruments take measurable process variables as inputs and produce information signals as outputs, enabling measurement, monitoring, and control functions. The core transformation is transduction from physical phenomena to information.
MetadataMetadados
COPI IDCOPI IDCOPI_0000091
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000091
StatusStatusexported
Axiom modeModoequivalent
CreatedCriado2026-05-02
UpdatedAtualizado2026-06-25
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13