title: What is a StoryBoard ID and how can I use this?
body: <p>I am new to IOS developing and recently started in Xcode 4.5. I saw for every viewController that i could set some identity variables including the storyboard ID. What is this, and how can I use it?</p>
  <p><img src="https://i.stack.imgur.com/Sidrj.png" alt="enter image description here" /></p>
  <p>I started searching on stackoverflow and couldn't find any explanation for it.</p>
  <p>I assumed it's not just some stupid label that I can set to remember my controller right? What does it do?</p>