SDaaS Application Profile sdaas_AP is the vocabulary that is recognized by SDaaS platform and agent. sdaas_AP is compatible with the KEES language profile.

Besides all KEES specifications, sdaas_AP provides support for RML specification as a data accrual method. It is also able to understand void:DataDump and dcat:Distribution classes

Following namespace are used:

• dcat: http://www.w3.org/ns/dcat#
• dct: http://purl.org/dc/terms/
• foaf: http://xmlns.com/foaf/0.1/
• owl: http://www.w3.org/2002/07/owl#
• rdfs: http://www.w3.org/2000/01/rdf-schema#
• schema: http://schema.org/
• skos: http://www.w3.org/2004/02/skos/core#
• spdx: http://spdx.org/rdf/terms#
• xsd: http://www.w3.org/2001/XMLSchema#
• qb: http://purl.org/linked-data/cube#
• daq: http://purl.org/eis/vocab/daq#
• prov: http://www.w3.org/ns/prov#
• void: http://rdfs.org/ns/void#
• sd: http://www.w3.org/ns/sparql-service-description#
• kees: http://linkeddata.center/kees/v1#
• sdaas: http://linkeddata.center/sddas/v1#
• rml: http://semweb.mmlab.be/ns/rml#
• ql: http://semweb.mmlab.be/ns/ql#
• rr: http://www.w3.org/ns/r2rml#
• csvw: http://www.w3.org/ns/csvw#
• d2rq: http://www.wiwiss.fu-berlin.de/suhl/bizer/D2RQ/0.1#

Following restrictions apply:

• rr:graphMap attribute is not recognized, all triples are generated in the graph where the RML triple map is defined
• all csv source files must be related with a csvw:Table wth following attributes with max cardinality =1:
  • csvw:dialect (default sdass:standardCSVDialect)
  • csvw:delimiter (default ",")
  • csvw:encoding (default"UTF-8")
  • csvw:header (default tre)
• if the dct:source referred object is a dataset, the rml:source in the logical source must be a distribution of such datatset

Examples:

Build a graph from a triple map:

[] a kees:Plan ;
   kees:builds <http://www.example/named-graph> ;
   dct:accrualMethod ( [  a rml:TriplesMap
     rml:logicalSource [
        rml:source <http://www.example/dataset/distribution.csv> ;
        rml:referenceFormulation ql:CSV
     ];
    rr:subjectMap [
        rr:template "http://airport.example.com/{id}";
        rr:class ex:Stop 
    ]);
    # ...
  ]
.

<http://www.example/dataset> a dcat:Dataset ;
    dcat:distribution [
        a dcat:Distribution;
        dcat:downloadURL <http://www.example/dataset/distribution.csv> 
    ]
.

[] a csvw:Table;
    csvw:url <http://www.example/dataset/distribution.csv> ;
    csvw:dialect [ a csvw:Dialect;
        csvw:delimiter ";";
        csvw:encoding "UTF-8";
        csvw:header "1"^^xsd:boolean 
    ]
.

From datadumps :

[] kees:builds :NYTimes
   kees:from [
      void:dataDump <http://data.nytimes.com/people.rdf>;
      void:dataDump <http://data.nytimes.com/organizations.rdf>;
      void:dataDump <http://data.nytimes.com/locations.rdf>;
      void:dataDump <http://data.nytimes.com/descriptors.rdf>
   ]
.