exported
equivalent
vessel
IRI:
http://www.inf.ufrgs.br/ontologies/copi#Vessel
Generated on 2026-04-13
Natural Language Definition
EN
A vessel is an assembly designed to contain fluids or solids for storage and/or processing purposes.
PT-BR
Um vaso é um conjunto projetado para conter fluidos ou sólidos para fins de armazenamento e/ou processamento.
Formal Axioms
Semi-formal (Aristotelian)
Every vessel is an assembly that bears a containment function and has a vessel shell and vessel head as component parts at all times.
First-Order Logic Theory
Loading…
▸ Stored override
∀x(Vessel(x) ↔ Assembly(x) ∧ ∃f(ContainmentFunction(f) ∧ bearerOf(x,f)) ∧ ∃s(VesselShell(s) ∧ hasComponentPartAtAllTimes(x,s)) ∧ ∃h(VesselHead(h) ∧ hasComponentPartAtAllTimes(x,h)))
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: Vessel
<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 "2026-10-07"^^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_0000025 rdf:type owl:Class ; # ContainmentFunction
rdfs:subClassOf iof-core:DesignedFunction ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:allValuesFrom :COPI_0000443 # ContainmentProcess
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:someValuesFrom :COPI_0000443 # ContainmentProcess
] ;
rdfs:label "containment function"@en ;
rdfs:label "função de contenção"@pt-br .
### Process type
:COPI_0000443 rdf:type owl:Class ; # ContainmentProcess
rdfs:subClassOf :COPI_0000009 ; # MaterialContainment
rdfs:label "containment process"@en ;
rdfs:label "processo de contenção"@pt-br .
:COPI_0000009 rdf:type owl:Class . # MaterialContainment
:COPI_0000443 # ContainmentProcess
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: Vessel
:COPI_0000158 rdf:type owl:Class ; # Vessel
owl:equivalentClass [
rdf:type owl:Class ;
owl:intersectionOf (
iof-core:Assembly
[
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart)
owl:someValuesFrom :COPI_0000025 # ContainmentFunction
]
)
] ;
rdfs:label "vessel"@en ;
rdfs:label "vaso"@pt-br ;
iof-av:naturalLanguageDefinition "A vessel is an assembly designed to contain fluids or solids for storage and/or processing purposes."@en ;
skos:definition "A vessel is an assembly designed to contain fluids or solids for storage and/or processing purposes."@en ;
iof-av:naturalLanguageDefinition "Um vaso é um conjunto projetado para conter fluidos ou sólidos para fins de armazenamento e/ou processamento."@pt-br ;
iof-av:semiFormalNaturalLanguageAxiom "Every vessel is an assembly that bears a containment function and has a vessel shell and vessel head as component parts at all times."@en ;
iof-av:firstOrderLogicAxiom "∀x(Vessel(x) ↔ Assembly(x) ∧ ∃f(ContainmentFunction(f) ∧ bearerOf(x,f)) ∧ ∃s(VesselShell(s) ∧ hasComponentPartAtAllTimes(x,s)) ∧ ∃h(VesselHead(h) ∧ hasComponentPartAtAllTimes(x,h)))"@en ;
skos:altLabel "drum"@en ;
skos:definition "[ISO 15926-4] A <VESSEL> is a <FLUID CONTAINER>, intended for storage and/or processing of fluids"@en ;
skos:definition "[CFIHOS] A container intended for storage and/or processing of fluids."@en ;
skos:definition "[DEXPI] A container intended for storage and/or processing of fluids or solids."@en .
# Disjointness: Vessel and Valve
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000158 :COPI_0000077 ) . # Vessel, Valve
# Disjointness: Vessel and Pump
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000158 :COPI_0000072 ) . # Vessel, Pump
# Disjointness: Vessel and Compressor
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000158 :COPI_0000073 ) . # Vessel, Compressor
Axiomatization Decision Log
1
Identity-Giving Function
Function class
ContainmentFunction
⊑ DesignedFunction
Realized in
ContainmentProcess
⊑ MaterialContainment
The identity-giving function is containment - to hold and contain fluids or solids for storage and/or processing. This is what makes a vessel a vessel rather than other equipment types.
✓
Expert review — Accepted
2
Genus Determination
Assembly
bfo:Object (BFO_0000030)
Causally unified material artefact composed of physically connected,
separable MaterialComponent parts. Satisfies
Assembly ⊑ MaterialArtifact ⊑ bfo:Object.
Vessels are engineered containers with physically connected parts (shells, heads, nozzles, internal components) that form a single causally unified object. They are more complex than simple MaterialArtifacts, having removable/maintainable subcomponents. No appropriate domain-specific parent exists in the enriched classes - this appears to be a fundamental equipment category.
✓
Expert review — Accepted
3
Necessary Parts
No necessary parts recorded (concept may be primitive at this level).
These are the minimal structural components required for any vessel to fulfill its containment function - a shell for the main boundary and heads for closure.
✓
Expert review — Accepted
4
Process Participation Signature ⟨I, O, T⟩
Inputs (I)
PortionOfFluid
— various phases and compositions
Outputs (O)
PortionOfFluid
— potentially modified by processing
Transformation (T)
containment with optional processing (heating, cooling, reaction, separation)
Vessels can contain various fluid types and may have no inputs/outputs (storage) or multiple streams (processing). The transformation depends on the specific vessel type and application.
✓
Expert review — Accepted
"Turbine removido de disjoint_with — classe não enriquecida na ontologia; será re-adicionado quando Turbine for axiomatizado."
5
Axiom Mode Decision
Necessary + Sufficient
— modelled as a defined class
(≡, EquivalentClass). Automatic classification is
appropriate for this concept.
✓
Expert review — Accepted
Disjointness Axioms
Valve
Pump
Compressor
C2: Valve, Pump, Compressor, Turbine. These equipment types have fundamentally different process signatures - valves control flow, pumps move fluids, compressors compress gases, turbines extract work from fluids, while vessels contain fluids
Reviewer Notes
Colleague backlog term "Drum" (generic, unqualified) added as alt_label 2026-09-10. No dedicated row was created: ISO 15926-4s own DRUM term is defined as a bulk-cargo shipping container (wrong sense -- colleague confirmed their usage means a generic process vessel), and no other terms.db entry grounds a generic process-vessel drum distinct from the already-enriched flash drum / knock out drum (genus Separator). Filed here on the most generic correct fallback (Vessel) per user direction to resolve every backlog term to an acceptable class when no dedicated anchor exists.
Source Definitions
3 sources
ISO 15926-4
VESSEL ↗
Definition text withheld (copyrighted standard) — follow the source link above.
CFIHOS
vessel
Definition text withheld (copyrighted standard) — follow the source link above.
DEXPI
Vessel ↗
Definition text withheld (copyrighted standard) — follow the source link above.
Metadata
| Ontology | COPI |
| Research group | INF-UFRGS-Ontologies |
| Funding | CNPq INF-UFRGS-ENERGIA |
| Project | OntoKG / Petrobras |
| ID | #49 |
| Cluster | vessel |
| Status | exported |
| Axiom mode | equivalent |
| Created | 2026-04-13 |
| Updated | 2026-09-10 |
ISA 5.1-2022 P&ID Symbol
wikimedia/separator.svg
