OWL 2 QL
E31305
OWL 2 QL is a lightweight profile of the Web Ontology Language designed to enable efficient query answering over large datasets using standard relational database technologies.
All labels observed (4)
| Label | Occurrences |
|---|---|
| OWL 2 QL canonical | 5 |
| DL-Lite family | 1 |
| OWL 2 | 1 |
| OWL 2 Web Ontology Language Profiles specification | 1 |
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
OWL 2 profile
ⓘ
ontology language profile ⓘ |
| allows |
concept inclusions of limited form
ⓘ
role inclusions with certain restrictions ⓘ |
| basedOn | DL-Lite family of description logics ⓘ |
| compatibleWith | standard relational database technologies ⓘ |
| contrastedWith |
OWL DL
ⓘ
surface form:
OWL 2 DL
OWL 2 EL ⓘ OWL 2 RL ⓘ |
| designedFor |
efficient query answering
ⓘ
large datasets ⓘ use with relational database systems ⓘ |
| disallows |
arbitrary role composition
ⓘ
complex cardinality restrictions ⓘ full negation on complex concepts ⓘ |
| enables | rewriting ontology-mediated queries into SQL ⓘ |
| hasAbbreviation | QL ⓘ |
| hasComplexity | AC0 data complexity for certain query answering tasks ⓘ |
| hasConstraint |
no complex role inclusion cycles
ⓘ
no role transitivity axioms ⓘ |
| hasDesignGoal |
scalability to very large data volumes
ⓘ
tractable reasoning over large ABoxes ⓘ |
| hasDesignTradeoff |
limited support for complex class constructors
ⓘ
restricted expressivity in the TBox ⓘ |
| hasProfileType | lightweight profile ⓘ |
| hasProperty | first-order rewritability of queries ⓘ |
| hasReasoningTask |
classification of lightweight ontologies
ⓘ
query answering ⓘ |
| hasSemantics | model-theoretic semantics of OWL 2 ⓘ |
| implementedIn |
OBDA systems
ⓘ
various ontology reasoners ⓘ |
| introducedIn | OWL 2 recommendation ⓘ |
| nameMeaning | Query Language ⓘ |
| optimizedFor | conjunctive query answering ⓘ |
| partOf |
OWL 2 QL
self-linksurface differs
ⓘ
surface form:
OWL 2
|
| relatedTo |
RDF
ⓘ
SPARQL ⓘ ontology-based data management ⓘ |
| specifiedIn |
OWL 2 QL
self-linksurface differs
ⓘ
surface form:
OWL 2 Web Ontology Language Profiles specification
|
| standardizedBy |
World Wide Web Consortium
ⓘ
surface form:
W3C
|
| subClassOf | Description Logic ⓘ |
| supports | polynomial-time query answering in data complexity ⓘ |
| targetEnvironment |
database-backed applications
ⓘ
enterprise information systems ⓘ |
| useCase |
data integration over relational sources
ⓘ
ontology-based data access ⓘ semantic querying of legacy databases ⓘ |
| usedWith | mapping languages for relational-to-ontology mappings ⓘ |
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
OWL 2 Web Ontology Language Profiles specification
this entity surface form:
DL-Lite family