From Ponton Consulting:
Ponton X/E - the form-based XML editor - is the tool of choice when you want to visually create XML documents in a form-based editor. With the layout editor you can create your own form-based GUI layouts on the fly. The Ponton X/E XML offers a range of integrated functions for creating, processing, and signing documents. Users can easily navigate through documents and edit the content in form-based layouts. Contract parties can use the XML editor to negotiate and sign the contract and verify other parties' signatures. In addition, the XML editor offers functions to insert database content into a document, to transform the document to other formats using XSLT, and to send the document by email to your business partner.