[1] Orbeon Forms User Guide - Welcome, , https://arce.ine.es/ops/doc/index
Orbeon Forms is an open source forms solution that handles the complexity of forms typical of the enterprise or government. It is delivered to standard web browsers (including Internet Explorer, Firefox, Safari and Opera) thanks to XForms and Ajax technology, with no need for client-side software or plugins. Orbeon Forms allows you to build fully interactive forms with features that include as-you-type validation, optional and repeated sections, always up-to-date error summaries, PDF output, full internationalization, and controls like auto-completion, tabs, dialogs, trees and menus.
[2] XForms を中心に XML 関連技術をいろいろ実装している。
XForms, XInclude, XPL, XUpdate
[7] Orbeon Forms User Guide - XML Namespaces, , https://arce.ine.es/ops/doc/reference-xml-namespaces
[9] さすがにIDEで自動挿入だよね・・・!? tools save us!
[3] 今となっては文化遺産として保護するべきよなw