title: XSD validation tool
body: <p>I'm a complete newbie to XSD, so please forgive me if this question is plain stupid. I'm writing my XML Schema in Eclipse (Kepler). There, in particular, I can validate my .xsd file directly by simple right-click on the .xsd file in my project, and selecting 'Validate'. Everything was going OK until I realized that I would like to use XSD 1.1 (in particular, for assertions) which Eclipse does not support. I did some googling to find that Notepad++ has this nice 'XML Tools' plugin that one can use to validate an XML file against an existing schema (XSD). My problem is that (for the time being) I don't want to validate an XML but rather validate my XSD itself, and thus I do not have a schema against which I would like to validate. So, how can I validate an actual xml schema 1.1 file? Any tools for that? Can I use the 'XML tools' plugin for that?</p>
  
  <p>Note added: by validation (which I maybe used incorrectly) I understand all sort of checks for syntax (?) correctness.</p>
  
  <p>Any help greatly appreciated.</p>