Comparing the planned feature of the different (proposed) incubating Apache Projects
Feature |
Jena |
Clerezza |
Stanbol |
Performant and scalable storage of triples |
X |
Default Distros include Jena TDB or Sesame |
|
SPARQL Endpoint |
X |
Distributing queries to backends |
Delegated to Clerezza |
Java API for accessing and manipulating RDF graphs |
X |
X |
|
Scala DSL for accessing and manipulating RDF Graphs |
|
X |
|
Generic mechanism to transform RDF data to any format |
|
X |
|
Support for categorizing resources using SKOS |
|
X |
? |
SPI for systems providing suggestion for the categorization of Information Resources |
|
X |
X |
Exposing RDF data over a REST API with Conneg |
X |
X |
|
Extensability and customization of Rest API base on URI-Path |
|
X |
|
Extensability and customization of Rest API base on RDF -Type of Resource |
|
X |
|
Inferencing support (OWL) |
X |
|
|
RDF rules language |
X |
|
X (with delegation to inference engines) |
Parsers for RDF serializations |
X |
X (Formats supported by Jena, RDFa, RDF/JSON) |
|
Writers for RDF serializations |
X |
X (Formats supported by Jena, RDF/JSON, and stable n-triples) |
X (some prototype for JSON-LD that will either move to Clerezza or to Jena) |
Support for multiple storage backends |
X |
X |
(Delegated to Clerezza) |
Authentication and Authorization Framework |
|
X |
|
Social Web features (WebId, OpenId, user specific graphs) |
|
X |
|
Social Distance Based Authorization |
|
Planned |
|
OSGi service to chain engines that analyze text and output results as RDF |
|
|
X |
OSGi service to syndicate, map and cache remote linked open data sources (dbpedia, freebase, ...) |
|
cache for dbpedia or other skos taxonomy sparql-service. |
X |
OSGi service to suggest mapping with linked data entities based on similarity queries on lucene/solr fulltext indices of entities |
|
|
X |