exported
necessary
filter element
IRI:
http://www.inf.ufrgs.br/ontologies/copi#Filterelement
Generated on 2026-05-04
Natural Language Definition
EN
A Filter that is made from filter media and that is a component part of a filter assembly.
PT-BR
Um Filtro que é feito de meio filtrante e que é uma parte componente de um conjunto de filtro.
Formal Axioms
Semi-formal (Aristotelian)
FilterElement SubClassOf Filter and (madeFrom some FilterMedia) and (componentPartOf some FilterAssembly)
First-Order Logic Theory
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▸ Stored override
∀x(FilterElement(x) → Filter(x) ∧ ∃m(FilterMedia(m) ∧ madeFrom(x,m)) ∧ ∃a(FilterAssembly(a) ∧ componentPartOf(x,a)))
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: FilterElement
<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_0000194 rdf:type owl:Class ; # FiltrationFunction
rdfs:subClassOf iof-core:DesignedFunction ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:allValuesFrom :COPI_0000510 # FiltrationProcess
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:someValuesFrom :COPI_0000510 # FiltrationProcess
] ;
rdfs:label "filtration function"@en ;
rdfs:label "função de filtração"@pt-br ;
iof-av:naturalLanguageDefinition "A DesignedFunction that is realized in a FiltrationProcess and that consists in selectively retaining particles, contaminants, or unwanted substances from a fluid stream while allowing the clean fluid to pass through."@en ;
skos:definition "A DesignedFunction that is realized in a FiltrationProcess and that consists in selectively retaining particles, contaminants, or unwanted substances from a fluid stream while allowing the clean fluid to pass through."@en .
### Process type
:COPI_0000510 rdf:type owl:Class ; # FiltrationProcess
rdfs:subClassOf :COPI_0000006 ; # MechanicalSeparation
rdfs:label "filtration process"@en ;
rdfs:label "processo de filtração"@pt-br ;
iof-av:naturalLanguageDefinition "A PlannedProcess in which particles, contaminants, or unwanted substances are selectively retained from a fluid stream by a filter element through mechanical screening or other separation mechanisms while clean fluid passes through."@en ;
skos:definition "A PlannedProcess in which particles, contaminants, or unwanted substances are selectively retained from a fluid stream by a filter element through mechanical screening or other separation mechanisms while clean fluid passes through."@en .
:COPI_0000006 rdf:type owl:Class . # MechanicalSeparation
:COPI_0000510 # FiltrationProcess
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: FilterElement
:COPI_0000267 rdf:type owl:Class ; # FilterElement
rdfs:subClassOf :COPI_0000081 ; # Filter
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart)
owl:someValuesFrom :COPI_0000194 # FiltrationFunction
] ;
rdfs:label "filter element"@en ;
rdfs:label "elemento filtrante"@pt-br ;
iof-av:naturalLanguageDefinition "A Filter that is made from filter media and that is a component part of a filter assembly."@en ;
skos:definition "A Filter that is made from filter media and that is a component part of a filter assembly."@en ;
iof-av:naturalLanguageDefinition "Um Filtro que é feito de meio filtrante e que é uma parte componente de um conjunto de filtro."@pt-br ;
iof-av:semiFormalNaturalLanguageAxiom "FilterElement SubClassOf Filter and (madeFrom some FilterMedia) and (componentPartOf some FilterAssembly)"@en ;
iof-av:firstOrderLogicAxiom "∀x(FilterElement(x) → Filter(x) ∧ ∃m(FilterMedia(m) ∧ madeFrom(x,m)) ∧ ∃a(FilterAssembly(a) ∧ componentPartOf(x,a)))"@en ;
iof-av:isPrimitive "true"^^xsd:boolean ;
iof-av:primitiveRationale "Constructive classification based on material composition (filter media) and mereological relationship (component of assembly). Under OWA, asserting equivalence could lead to unintended classification of any artifact made from filter media as a filter element, including specialized or hybrid components that contain filter media but serve different primary functions."@en ;
skos:definition "[ISO 15926-4] A <FILTER ELEMENT> is a <FILTER> and that is the part of a filter assembly that is made from filter media"@en .
Axiomatization Decision Log
1
Identity-Giving Function
Function class
FiltrationFunction
⊑ DesignedFunction
Realized in
FiltrationProcess
⊑ MechanicalSeparation
Reusing existing FiltrationFunction from the already-enriched 'filter' class. A filter element performs the same core filtration function as the broader filter category - it is the active component that realizes the filtration process within a filter assembly.
2
Genus Determination
Filter
Filter element is explicitly defined as 'part of a filter assembly' and performs filtration function, making it a specialized type of filter. The enriched Filter class is the most specific appropriate genus, being more specific than the generic Assembly or MaterialArtifact roots.
3
Necessary Parts
No necessary parts recorded (concept may be primitive at this level).
No component parts are identified in the source definition or Known Component Terms list. The definition describes filter element as being 'made from filter media' but FilterMedia would be a material composition rather than a discrete component part. Since no specific component terms are provided in the sources, no parts are specified.
4
Process Participation Signature ⟨I, O, T⟩
Inputs (I)
PortionOfFluid
— contaminated fluid containing particles or unwanted substances to be filtered
Outputs (O)
PortionOfFluid
— clean fluid with reduced contaminant content
Transformation (T)
selective retention of particles and contaminants while allowing clean fluid passage
Filter element performs size-based particle removal through filter media, taking contaminated fluid as input and producing cleaner fluid as output. The transformation is mechanical filtration as the element physically screens out unwanted substances.
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.
Constructive classification based on material composition (filter media) and mereological relationship (component of assembly). Under OWA, asserting equivalence could lead to unintended classification of any artifact made from filter media as a filter element, including specialized or hybrid components that contain filter media but serve different primary functions.
Cross-Standard Observations
Only one source definition available, preventing cross-standard comparison. The ISO 15926-4 definition is structurally clear, focusing on material composition and mereological relationship rather than functional aspects.
