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XForms for Metadata Creation


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XForms for Metadata Creation

  1. 1. XForms for Metadata Creation Winona Salesky University of Vermont Michael Park Brown University
  2. 2. The Problem
  3. 3. Enter XForms “ XForms is an XML application that represents the next generation of forms for the web.” - XForms 1.1 Specification
  4. 4. XForms - the highlights <ul><li>- Platform and device independent </li></ul><ul><li>- Separates data and logic from presentation </li></ul><ul><li>- XML in, XML out </li></ul><ul><li>- XML Schema validation </li></ul><ul><li>- Reduces or eliminates the need for scripting </li></ul><ul><li>- Does not require expensive round-tripping when the data is modified </li></ul>
  5. 5. Anatomy of an XForm <ul><li><html> </li></ul><ul><ul><li><head> </li></ul></ul><ul><ul><li></head> </li></ul></ul><ul><ul><li><body> </li></ul></ul><ul><ul><li></body> </li></ul></ul><ul><li></html> </li></ul><ul><li><xforms:model> </li></ul><ul><li><xforms:model> </li></ul>The Model The User Interface <xforms:instance/> <xforms:bind …/> <xforms:submission …/> <xforms:input/> <xforms:output/> <xforms:text/> <xforms:select1/> <xforms:repeat/>
  6. 6. Firefox XForms Extension
  7. 7. Demo
  8. 8. Putting it all together MODS XForms eXist Solr Firefox Browser REST REST
  9. 9. More Info <ul><li>- Code: </li></ul><ul><ul><li> </li></ul></ul><ul><li>- Examples: </li></ul><ul><ul><li> </li></ul></ul><ul><ul><li> </li></ul></ul><ul><li>- Blog: </li></ul><ul><ul><li> </li></ul></ul>
  10. 10. Build a web-based XML editor ?!
  11. 11. Why a MODS Editor ? Digital Repository Metadata
  12. 12. Requirements <ul><li>- Web-based </li></ul><ul><li>- Simple UI </li></ul><ul><li>- Support complex metadata </li></ul><ul><li>- Enforce correct data input </li></ul><ul><li>- Easily maintained </li></ul>
  13. 13. Demo
  14. 14. XForms – which one ? - Architecture - Implementation Client Server
  15. 15. Why Orbeon ? <ul><li>- Robust open source web app </li></ul><ul><li>- XForms engine for Java applications </li></ul><ul><li>- Documentation </li></ul><ul><li>- Active community </li></ul><ul><li>- AJAX technology </li></ul><ul><li>- Widgets </li></ul>
  16. 16. How it all works eXist MODS editor Orbeon AJAX REST XML
  17. 17. XForms - the downside <ul><li>- It’s all XML ! </li></ul><ul><li>- Appears large and complicated </li></ul><ul><li>- XForms is not a Web standard </li></ul><ul><li>- Implementations aren’t there yet </li></ul>
  18. 18. XForms - the upside <ul><li>- XML, XML, XML </li></ul><ul><li>- Create an entire application </li></ul><ul><li>- No scripting </li></ul><ul><li>- Strong typing </li></ul><ul><li>- Interactive UI </li></ul>
  19. 19. The MODS editor Code <ul><li>- Code and documentation: </li></ul><ul><li> </li></ul><ul><li>- Example: </li></ul><ul><li> </li></ul><ul><li>- Questions: </li></ul><ul><li>michael_park_ 1 </li></ul>