title: In Objective-C what utility uses @brief tag in comments?
body: <p>I just started programming in Objective-C and found some example comments like the following:</p>
  
  <pre><code>/*!
  @brief The UIImageView we use to display the image generated from the imageBuffer
  */
  </code></pre>
  
  <p>What is the purpose of <code>@brief</code>? Is this something related to a documentation system like Doxygen?</p>