Figure 4

Tool-generator default SPARQL query. In this query a set of filters for retrieving SADI service URIs is defined: the service (?s) must be a member of the classes serv:serviceDescription and sadi:Service (Lines 11 and 12); the service must be provided by an organisation (serv:providedBy ?org, line 13); the service must add an OWL property predicate to the output (sadi:decoratesWith ?out. ?out owl:onProperty ?prop, lines 17 and 18); etc. The query returns around 250 active SADI services from the default registry. Other queries can be defined, as long as the ?s variable is used for service URIs. For example, in line 15, the ~wilkinsonlab.info~ value can be used, instead of the variable ?pub, to retrieve SADI services provided by wilkinsonlab.info.