Table 2. Comparison of existing platforms/products.
| Semantic Mediawiki | Wikibase (Wikidata) | OntoWiki | |
|---|---|---|---|
| Editor | Yes | Yes | Yes |
| Triple Viewer | Yes | Yes | Yes |
| Visualization | Optional (e.g., graph extension) | Several built-in features | Optional (Cubeviz) |
| Original Purpose | Semantic Annotation of Wiki pages | Knowledge Base + Fact Editor for
populating Wikipedia Infoboxes |
Knowledge Base Editor |
| Full source on Github | Yes | Yes | Yes |
| Last Edit on Github | 17.06.2019 / Active | 14.06.2019 / Active | 11.07.2017/Currently no
further development |
| Frontend Technology | Browser | Browser | Browser |
| Server Technology | PHP | PHP | PHP |
| Storage Technology | Relational (can optionally be
complemented with Triplestore running in parallel |
Relational with mirror Triplestore
for Queries |
Triplestore or Relational |
| Native RDF | When using complementary Triplestore | No | Yes |
| RDF Export (Only for editor) | Yes | Yes | Yes |
| RDF Import | Via tools, e.g. RDFIO Tool for RDF import,
convertion to internal format |
Needs longer conversion
workflow, would need creation of or mapping to existing Wikibase classes/properties |
Yes |
| Builtin OWL import | No
(Could be done via script, converting owl features having counterparts in internal class/property structure) |
No
(Could be done via script, converting owl features having counterparts in internal class/ property structure) |
Yes (With limitation) |
| SPARQL Support | When using complementary Triplestore | Sparql queries against parallel
Triplestore |
Yes |
| Class/Category System
available for instantiation |
yes; proprietary; subclass/subproperty
relationships possible |
yes; proprietary; subclass/
subproperty relationships possible |
Yes; based on OWL |
| Constraints (Only for
Editor) |
uniqueness (Property can only be used
once per instance) Permitted Values (Controlled list of values to be entered for property) datatype check (One of) |
Custom, | No |
| Provenance | Statement Level Provenance
(references) |
Statement Level Provenance
(references) |
Statement Level
Provenance (references) |
| Revision Tracking | Yes | Yes | Yes |
RDF: Resource Description Framework | OWL: Web Ontology Language | SPARQL: Protocol and RDF Query Language