Service A service started by the gvs services command the factoryJavaClass property point to an instance of com.hp.hpl.jena.gvs.tool.services.ServiceFactory factoryJavaClass Point to the fully qualified class-name of the service-factory of the subject configuration The configuration of the subject Points to a resource of which the description obtained from the trusted sources configures the service. Note that the object must be named so it can be passed to the service. identity The identity of the subject This is the source that asserts the triples generated by the service trustedSource A source trusted by the subject Typically a service takes its configuration from the trusted sources