DITA 1.0 changes

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Subject: DITA 1.0 changes




From: Christopher Wong <>
To: DITA TC list <>
Date: Thu, 26 May 2005 10:46:28 -0400










The following is my attempt to document the changes going from pre-1.0
DITA (public toolkit 1.3.2) and the official OASIS DITA 1.0 standard.
Hopefully, this will make it easier for DITA adopters to migrate to the
official standard. I'm posting this on the TC list first in case any of
you can catch any mistakes I made.

DITA 1.0 changes



  
    Topic level elements'
bodies are now optional. This affects topic
and its specializations. So topic/body, task/taskbody etc are now optional.
  
  
    The boolean element is eliminated. This element is
redundant, as the state element provides a
superset of its functionality.
  
  
    The xref element can now contain the desc element to be consistent with the topicref element..
  
  
    The choice element's content model and attributes
has been expanded to be consistent with the li
element. This includes the id attribute so
this element can now be a link or conref target.
  
  
    The query attribute was added to the link element to be consistent with the topicref element.
  
  
    The xml:lang and translate
attributes were added to the topicref
element to be consistent with the link
element.
  
  
    The table element is now essentially the OASIS
Exchange model. It was previously CALS-based.
    
    
      
        The spanspec and tfoot
child elements have been eliminated.
      
      
        The expanse attribute has been renamed to pgwide.
      
      
        char
and charoff attributes have been added to
the entry and colspec
elements.
      
    
    
  
  
    Namespace support:
    
    
      
        The DTDVersion attribute in topic level elements has
been changed to a namespace-prefixed DITAArchVersion
attribute.
      
      
        All other elements
have a null namespace declaration (xmlns="").
      
    
    
  
  
    The public IDs have
been changed. In keeping with the move to a vendor-independent
standard, the DITA public IDs have changed the owner component from
"IBM" to "OASIS". They are otherwise unchanged. For example,
topic.dtd's public ID changed from "-//IBM//DTD DITA Topic//EN" to
"-//OASIS//DTD DITA Topic//EN".
  
  
    The use of the
conditional processing attribute otherprops has been clarified. As I
documented before, it can contain expressive multi-axes
spaced-delimited conditional properties like "language(C C++ Java)
skill(programming) coffee(black)". 
  
  
    The use of topicref has been clarified. In place of the
now-rejected mapref proposal to include
other DITA maps in map, the committee
simply decided to make clear that topicref
can serve this purpose. The format attribute of topicref
is now documented to explicitly allow the "mapref" value (i.e., the
resource is a DITA map).
  
  
    keyref
attribute is CDATA instead of NMTOKEN. This relaxes the attribute's
model.

  
  
    The keyword element's definition now parametrizes
the tm element to be consistent with other
base phrase types.

  










Follow-Ups:

Re: [dita] DITA 1.0 changes
From: Robert D Anderson <>








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