Data category
    
     Data category
     
     ITS defines
      data category
     as an abstract concept for a particular type of information for internationalization and localization of XML schemas and documents.
     
    
   
   
   For the implementation of ITS, apply the rules in the order:
   
   
    - Default
- Rules in the schema
- Rules in the document instance
- Local attributes
    Et voila !
    The last rule wins.