# The Serializer (Writer) Model
  
  The serializer roughly follows sections _8.1 Writing HTML documents_ and section
  _8.3 Serializing HTML fragments_ by converting DOMDocument, DOMDocumentFragment,
  and DOMNodeList into HTML5.
  
         [ HTML5 ]   // Interface for saving.
            ||
       [ Traverser ]   // Walk the DOM
            ||
         [ Rules ]     // Convert DOM elements into strings.
            ||
         [ HTML5 ]     // HTML5 document or fragment in text.
  
  
  ## HTML5 Class
  
  Provides the top level interface for saving.
  
  ## The Traverser
  
  Walks the DOM finding each element and passing it off to the output rules to
  convert to HTML5.
  
  ## Output Rules
  
  The output rules are defined in the RulesInterface which can have multiple
  implementations. Currently, the OutputRules is the default implementation that
  converts a DOM as is into HTML5.
  
  ## HTML5 String
  
  The output of the process it HTML5 as a string or saved to a file.