title: What's the difference between "Chain of responsibility" and "Strategy" patterns?
body: <p>I'm raising this question because of <a href="https://stackoverflow.com/questions/5013502/whats-the-name-of-this-design-pattern/5035615#5035615">another question</a> I asked here on SO some days ago.<br>
  I had to solve an specific problem, and after two replies I got, I realized two patterns can help to solve that problem (and any other similar).</p>
  
  <ol>
  <li><em>Chain of Responsibility</em>  </li>
  <li><em>Strategy</em></li>
  </ol>
  
  <p>My question is:</p>
  
  <p><strong>What exactly is the difference between those patterns?</strong></p>