This web application allows ontology developers to validate their data that are based on the SSN ontology.

Users can input their data either by uploading a file or directly inputting the data in the textbox. An SSN instance “smart-knife” is provided an example.

The validator service will receive the data and compare it against the SSN ontology and other ontologies that are frequently associated with it. The result given is a validation report that reports any inconsistencies with the data. The application also provides a tag cloud that illustrates the popularity of the terms that are used by all the data that has been submitted for validation.

When a document is submitted to the service, the data is passed to the validator which uses the Jena Eyeball API. The document is then parsed via a SPARQL engine whereby the terms it contains are extracted and stored.