@prefix owl:     <http://www.w3.org/2002/07/owl#> .
@prefix skos:    <http://www.w3.org/2004/02/skos/core#> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix xsd:     <http://www.w3.org/2001/XMLSchema#> .
@prefix cc:      <http://creativecommons.org/ns#> .
@prefix vann:    <http://purl.org/vocab/vann/> .
@prefix :        <https://meta.linked.archi/examples/cloudplatform/reference-data#> .

<https://meta.linked.archi/examples/cloudplatform/reference-data#>
    a owl:Ontology ;
    cc:license "http://creativecommons.org/licenses/by/4.0/" ;
    vann:preferredNamespaceUri "https://meta.linked.archi/examples/cloudplatform/reference-data#" ;
    vann:preferredNamespacePrefix "cpref" ;
    dcterms:title "Cloud Platform Reference Data"@en ;
    dcterms:created "2026-05-03"^^xsd:date ;
    owl:versionInfo "0.1.0"@en ;
    dcterms:description                "Controlled vocabularies and reference data for Custom Metamodel architecture models."@en ;
    dcterms:creator               "Kalin Maldzhanski"^^xsd:string .

:CloudPlatformReferenceData
    a                skos:ConceptScheme ;
    skos:prefLabel   "Cloud Platform Reference Data"@en ;
    skos:hasTopConcept :ResilienceLevels, :DeploymentStrategies, :ServiceTiers, :DatabaseEngines .

## Resilience Levels
:ResilienceLevels a skos:Concept ; skos:topConceptOf :CloudPlatformReferenceData ; skos:inScheme :CloudPlatformReferenceData ; skos:prefLabel "Resilience Levels"@en .
:Critical a skos:Concept ; skos:broader :ResilienceLevels ; skos:inScheme :CloudPlatformReferenceData ; skos:prefLabel "Critical"@en ; skos:definition "System failure causes immediate revenue loss, safety risk, or regulatory breach."@en .
:High     a skos:Concept ; skos:broader :ResilienceLevels ; skos:inScheme :CloudPlatformReferenceData ; skos:prefLabel "High"@en ; skos:definition "System failure causes significant business disruption within hours requiring urgent response."@en .
:Medium   a skos:Concept ; skos:broader :ResilienceLevels ; skos:inScheme :CloudPlatformReferenceData ; skos:prefLabel "Medium"@en ; skos:definition "System failure causes moderate business impact with manual workarounds available."@en .
:Low      a skos:Concept ; skos:broader :ResilienceLevels ; skos:inScheme :CloudPlatformReferenceData ; skos:prefLabel "Low"@en ; skos:definition "System failure has minimal business impact and can be resolved during normal hours."@en .

## Deployment Strategies
:DeploymentStrategies a skos:Concept ; skos:topConceptOf :CloudPlatformReferenceData ; skos:inScheme :CloudPlatformReferenceData ; skos:prefLabel "Deployment Strategies"@en .
:BlueGreen a skos:Concept ; skos:broader :DeploymentStrategies ; skos:inScheme :CloudPlatformReferenceData ; skos:prefLabel "Blue-Green"@en ; skos:definition "Two identical environments maintained in parallel; traffic switches instantly between them."@en .
:Canary    a skos:Concept ; skos:broader :DeploymentStrategies ; skos:inScheme :CloudPlatformReferenceData ; skos:prefLabel "Canary"@en ; skos:definition "Gradual rollout to a small subset of users before full production deployment."@en .
:Rolling   a skos:Concept ; skos:broader :DeploymentStrategies ; skos:inScheme :CloudPlatformReferenceData ; skos:prefLabel "Rolling"@en ; skos:definition "Instances updated one at a time with zero downtime and automatic rollback on failure."@en .
:Recreate  a skos:Concept ; skos:broader :DeploymentStrategies ; skos:inScheme :CloudPlatformReferenceData ; skos:prefLabel "Recreate"@en ; skos:definition "All existing instances terminated and recreated simultaneously with brief downtime."@en .

## Service Tiers
:ServiceTiers a skos:Concept ; skos:topConceptOf :CloudPlatformReferenceData ; skos:inScheme :CloudPlatformReferenceData ; skos:prefLabel "Service Tiers"@en .
:Tier1 a skos:Concept ; skos:broader :ServiceTiers ; skos:inScheme :CloudPlatformReferenceData ; skos:prefLabel "Tier 1 (99.99%)"@en ; skos:definition "Mission-critical service requiring 99.99% uptime SLA with less than 5 minutes recovery time."@en .
:Tier2 a skos:Concept ; skos:broader :ServiceTiers ; skos:inScheme :CloudPlatformReferenceData ; skos:prefLabel "Tier 2 (99.9%)"@en ; skos:definition "Business-critical service requiring 99.9% uptime SLA with less than 1 hour recovery time."@en .
:Tier3 a skos:Concept ; skos:broader :ServiceTiers ; skos:inScheme :CloudPlatformReferenceData ; skos:prefLabel "Tier 3 (99%)"@en ; skos:definition "Operational service requiring 99% uptime SLA with less than 4 hours recovery time."@en .

## Database Engines
:DatabaseEngines a skos:Concept ; skos:topConceptOf :CloudPlatformReferenceData ; skos:inScheme :CloudPlatformReferenceData ; skos:prefLabel "Database Engines"@en .
:PostgreSQL a skos:Concept ; skos:broader :DatabaseEngines ; skos:inScheme :CloudPlatformReferenceData ; skos:prefLabel "PostgreSQL"@en .
:MySQL      a skos:Concept ; skos:broader :DatabaseEngines ; skos:inScheme :CloudPlatformReferenceData ; skos:prefLabel "MySQL"@en .
:MongoDB    a skos:Concept ; skos:broader :DatabaseEngines ; skos:inScheme :CloudPlatformReferenceData ; skos:prefLabel "MongoDB"@en .
:Redis      a skos:Concept ; skos:broader :DatabaseEngines ; skos:inScheme :CloudPlatformReferenceData ; skos:prefLabel "Redis"@en .