exported
necessary
hose
IRI:
http://www.inf.ufrgs.br/ontologies/copi#Hose
Generated on 2026-04-16
Natural Language Definition
EN
A hose is a flexible pipe designed to conduct liquids under pressure while accommodating positional movement and bending.
PT-BR
Uma mangueira é um tubo flexível projetado para conduzir líquidos sob pressão enquanto acomoda movimento posicional e flexão.
Formal Axioms
Semi-formal (Aristotelian)
Every hose is a pipe that has flexibility and is capable of conducting liquids under pressure.
First-Order Logic Theory
Loading…
▸ Stored override
∀x (Hose(x) → Pipe(x) ∧ ∃q(Flexibility(q) ∧ hasQuality(x,q)) ∧ ∃c(PressurizedFluidConduction(c) ∧ capableOf(x,c)))
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: Hose
<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" ;
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 "2026-10-08"^^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
:COPI_0000529 rdf:type owl:Class ; # FluidConductionFunction
rdfs:subClassOf iof-core:DesignedFunction ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:allValuesFrom :COPI_0000530 # FluidConductionProcess
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:someValuesFrom :COPI_0000530 # FluidConductionProcess
] ;
rdfs:label "fluid conduction function"@en ;
rdfs:label "função de condução de fluido"@pt-br .
### Process type
:COPI_0000530 rdf:type owl:Class ; # FluidConductionProcess
rdfs:subClassOf :COPI_0000003 ; # MomentumTransfer
rdfs:label "fluid conduction process"@en ;
rdfs:label "processo de condução de fluido"@pt-br .
:COPI_0000003 rdf:type owl:Class . # MomentumTransfer
:COPI_0000530 # FluidConductionProcess
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasInput ;
owl:someValuesFrom :COPI_0000037 # PortionOfFluid
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasSpecifiedOutput ;
owl:someValuesFrom :COPI_0000037 # PortionOfFluid
] .
### Equipment universal: Hose
:COPI_0000296 rdf:type owl:Class ; # Hose
rdfs:subClassOf :COPI_0000321 ; # Pipe
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart)
owl:someValuesFrom :COPI_0000529 # FluidConductionFunction
] ;
rdfs:label "hose"@en ;
rdfs:label "mangueira"@pt-br ;
iof-av:naturalLanguageDefinition "A hose is a flexible pipe designed to conduct liquids under pressure while accommodating positional movement and bending."@en ;
skos:definition "A hose is a flexible pipe designed to conduct liquids under pressure while accommodating positional movement and bending."@en ;
iof-av:naturalLanguageDefinition "Uma mangueira é um tubo flexível projetado para conduzir líquidos sob pressão enquanto acomoda movimento posicional e flexão."@pt-br ;
iof-av:semiFormalNaturalLanguageAxiom "Every hose is a pipe that has flexibility and is capable of conducting liquids under pressure."@en ;
iof-av:firstOrderLogicAxiom "∀x (Hose(x) → Pipe(x) ∧ ∃q(Flexibility(q) ∧ hasQuality(x,q)) ∧ ∃c(PressurizedFluidConduction(c) ∧ capableOf(x,c)))"@en ;
iof-av:isPrimitive "true"^^xsd:boolean ;
iof-av:primitiveRationale "Using necessary conditions because this is a constructive type defined by physical properties (flexibility). Under OWA, asserting equivalence would force any artifact with flexibility and pressure capability to be classified as a hose, potentially including complex equipment with flexible components that should not be categorized as standard hoses."@en ;
skos:definition "[ISO 15926-4] A <HOSE> is a <TUBULAR> that is flexible and capable of conducting liquids under pressure"@en ;
skos:definition "[CFIHOS] A tubular which is flexible and capable of conveying liquids under pressure."@en ;
skos:definition "[POSC Caesar] A tubular which is flexible and capable of conveying liquids under pressure."@en .
Axiomatization Decision Log
1
Identity-Giving Function
Function class
FluidConductionFunction
⊑ DesignedFunction
Realized in
FluidConductionProcess
⊑ MomentumTransfer
All sources define hose as conducting/conveying liquids under pressure. This is the same basic function as pipes - the FluidConductionFunction is already established in the ontology for the pipe class.
2
Genus Determination
Pipe
All sources define hose as a specialized type of tubular/pipe. The parent_candidates include TUBULAR from ISO 15926, which corresponds to our enriched 'pipe' class. A hose is essentially a flexible pipe, sharing the same basic fluid conduction function but distinguished by its flexible construction.
3
Necessary Parts
No necessary parts recorded (concept may be primitive at this level).
These components are necessary for any hose to fulfill its function of flexible pressurized fluid conduction. More specific hose types may have additional specialized parts.
4
Process Participation Signature ⟨I, O, T⟩
Inputs (I)
PortionOfFluid
— liquid phase, pressurized
Outputs (O)
PortionOfFluid
— same liquid, transported with minimal pressure loss
Transformation (T)
spatial relocation with accommodation of movement/flexing
Hoses conduct liquids under pressure from one location to another while accommodating positional changes through flexibility. The transformation is primarily spatial transport with the added capability of flexible positioning.
5
Axiom Mode Decision
Necessary conditions only
— modelled as a primitive universal
(⊑, SubClassOf). Identity is grounded in designed
function and cannot be reduced to a property checklist.
Using necessary conditions because this is a constructive type defined by physical properties (flexibility). Under OWA, asserting equivalence would force any artifact with flexibility and pressure capability to be classified as a hose, potentially including complex equipment with flexible components that should not be categorized as standard hoses.
Cross-Standard Observations
Strong consistency across all three sources (ISO 15926, CFIHOS, POSC Caesar) with identical emphasis on flexibility and liquid conduction under pressure. The parent hierarchy varies (TUBULAR vs. other mechanical equipment vs. PipeFitting) but all recognize the tubular nature.
