title: Create a form by article or component in Joomla! 3
body: <p>I'm newbie in Joomla. I know that we can create a form like "Create Article" in joomla! . However, we can also create a form by creating a component with MVC method. What is the different ? 
  Can somebody explain to me why we need a component if we can write a code on article in Joomla! ? </p>