Whippet can generate data input forms, either from schema files or directly from xml instance documents (by first inferring a schema from the instance, using Castor). Form widgets are generated according to user-editable logical rules implemented using Drools. For more information and source code, see the Jalama Project website

Currently, Whippet supports *simple* schema files that do not contain references. Example schema and their corresponding instance documents may be downloaded here.

[1] select the document(s) to be used as the basis for form generation:

•  a w3c xml schema document and a valid xml instance document
  - results in generation of a form from the schema, populated with the instance data, ready for editing.
  
  
•  an xml instance document (no schema)
  - results in the inference of a schema from the xml instance, and the generation of a form from this schema, populated with the instance data, to allow editing.
  
  
•  a w3c xml schema document (no instance)
  - results in generation of a form from the schema, ready for new data to be entered, and a new instance document to be created.
  
  

[2] hit "generate form" to create your custom editor

[3] use the editor to make changes.

[4] hit "finish" to display the new instance document.