logger.debug("service does not have an input.");
// service output
nodeIterator = model.listObjectsOfProperty(service_resource, has_output_property);
if (nodeIterator.hasNext() && (node = nodeIterator.next()).isResource()) {
outputAttributes = getAttributes(model, node.asResource(), IOType.OUTPUT );
outputModel = getSemanticModel(model, node.asResource());
} else
logger.info("service does not have an output.");
WebService service = new WebService(service_id, service_name, service_address);