Learning Document Structure

When working with documents that do not specify a schema, or for which the schema is not known or does not exist, Oxygen is able to learn and translate the document structure to a DTD. You can choose to save the learned structure to a file in order to provide a DTD as an initialization source for content completion and document validation. This feature is also useful for producing DTD's for documents containing personal or custom element types.

When you open a document that is not associated with a schema, Oxygen automatically learns the document structure and uses it for content completion. To disable this feature you have to uncheck the checkbox Learn on open document in the user preferences.