Conditional Processing

Conditional processing uses processing-time criteria to filter or flag information.

The attributes used for conditional processing are available on most elements:

• product: the product that is the subject of the discussion.
  
• platform: the platform on which the product is deployed.
  
• audience: the intended audience of the text
  
• rev: the revision or draft number of the current document (typically used for flagging only, not for filtering)
  
• otherprops: anything else
  

"DITA tries to implement conditional processing in a semantically meaningful way: rather than allowing arbitrary values to accumulate in a document over time in a general-purpose processing attribute, with meaning only to the original author, we encourage the authoring of metadata using specific metadata attributes on content. These metadata values can then be leveraged by any number of processes, including filtering, flagging, search, and indexing, rather than being suitable for filtering only." source

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