| Attributes |
| Name | Required | Request-time | Type | Description |
| kind | true | true | java.lang.String | Use value 'add' to specify you want to add one or more nodes at a specific XPath. Use value 'del' to specify you want to delete one or more nodes at a specific XPath. Use value 'replace' to specify you want to replace one or more nodes at a specific XPath. |
| xpath | true | true | java.lang.String | xpath expression to identify the targeted node(s) ; every node match by this expression will be modified. |
| forceUpdate | false | true | boolean | True if the engine has to be reloaded, false otherwise ; the default value is false. |
| file | true | true | java.lang.String | The relative (to the ontology path specified for the default engine or in the optional ontoDir attribute) path name of the ontology file where to add the new concept. |
| ontoDir | false | true | java.lang.String | The relative (to the webapp directory) path name of the ontologies directory. |
| engine | false | true | fr.inria.semcore.EngineWrapper | The engine instance that should be reloaded ; use this if you specified forceUpdate="true" and if it is not the default instance that has to be reloaded. |