SST Ontologies

Higher-level ontologies for industrial product data that integrate modelling concepts from international standards into a unified, single-level data model. This bridges major incompatibilities between these standards.

Integrated Standards

Standard	Description
ISO 15926 series	Life-cycle Integration (LCI) for process plants, including oil and gas production facilities
ISO 10303 series	STEP — STandard for the Exchange of Product model data
IEC 61360-4	IEC Common Data Dictionary (CDD) for electric/electronic components
ISO/IEC 81346	Standard Series on Reference Designation System (RDS)
ASD S3000L	Logistic Support Analysis (LSA)
ISO/IEC 80000	Quantities and Units

Ontologies

The following ontology files are embedded in this module:

Ontology	File	Description
color	ontologies/color/color.ttl	Color ontology
countrycodes	ontologies/countrycodes/countrycodes.ttl	Country code ontology
currencycodes	ontologies/currencycodes/currencycodes.ttl	Currency code ontology
eed	ontologies/eed/eed.ttl	Electric/electronic data ontology
lci	ontologies/lci/lci.ttl	Life-cycle integration ontology
owl	ontologies/owl/owl.ttl	OWL ontology definitions
qau	ontologies/qau/qau.ttl	Quantities and units ontology
rdf	ontologies/rdf/22-rdf-syntax-ns.ttl	RDF ontology definitions
rdfs	ontologies/rdfs/rdf-schema.ttl	RDFS ontology definitions
rep	ontologies/rep/rep.ttl	Representation ontology
sh	ontologies/sh/shacl.ttl	SHACL ontology definitions
skos	ontologies/skos/skos.ttl	SKOS ontology definitions
ssmeta	ontologies/ssmeta/ssmeta.ttl	SST meta ontology
sso	ontologies/sso/sso.ttl	Semantic STEP ontology
xsd	ontologies/xsd/xsd.ttl	XML Schema datatype definitions

Usage

This is a Go module that embeds all ontology files via embed.FS:

import "github.com/semanticstep/sst-ontologies"

// Access embedded ontology files
content, err := ontologies.FS.ReadFile("ontologies/sso/sso.ttl")

Requirements

• Go 1.22 or later