title: period in XML tags
body: <p>Studying XAML now, I keep seeing XAML tags in the format Object.Attribute. For example:</p>
  
  <pre><code> &lt;Deployment.OutOfBrowserSettings&gt;
       OutOfBrowserSettings ShortName="Hello World" &gt;
  </code></pre>
  
  <p>Don't recall seeing XML attributes like this before, always would see simple words, or possible a namespace column prefix such as x:application. So, to express an object/attribute relation as in above I would expect a notation such as:</p>
  
  <pre><code>&lt;Deployment&gt;
     &lt;OutOfBrowserSettings ShortName="Hello World" &gt;
  </code></pre>
  
  <p>So, my question is this: What's the significance of the '.' notation inside XML tags. What are the semantics? Is it specific to XAML?</p>