title: Proper way to design Use Case Diagram
body: <p><strong>[Original Title] : Does an actor need to point directly in use case diagram?</strong></p>
  
  <hr>
  
  <p>or can I do it like this?</p>
  
  <p><a href="https://i.stack.imgur.com/AZG9S.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/AZG9S.png" alt="Whole picture Use-Case-Diagram"></a></p>
  
  <p>in this Use Case Diagram, I want to say that actor can use any use case in the pointed group-of-use-case.</p>
  
  <p>does this kind of thing allowed?</p>
  
  <p><strong>Edit #1</strong></p>
  
  <p>The reason why I ask this question, is because when I create this use case there's a lot of line intersecting each other that makes me confuse.</p>
  
  <p>And there's a comment :</p>
  
  <blockquote>
    <p>It would be better to split that into smaller diagrams</p>
  </blockquote>
  
  <p>does it mean like this?</p>
  
  <p><a href="https://i.stack.imgur.com/UjXMa.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/UjXMa.png" alt="enter image description here"></a></p>
  
  <p><a href="https://i.stack.imgur.com/S1VZf.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/S1VZf.png" alt="enter image description here"></a></p>
  
  <p><a href="https://i.stack.imgur.com/HA4Ef.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/HA4Ef.png" alt="enter image description here"></a></p>
  
  <p><strong>Edit #2</strong></p>
  
  <p>after reading comment :</p>
  
  <blockquote>
    <p>A UseCase specifies a set of actions performed by its subjects, which yields an observable result that is of value for one or more Actors or other stakeholders of each subject.</p>
  </blockquote>
  
  <p>so I decided to change to this :</p>
  
  <p><a href="https://i.stack.imgur.com/lx78a.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/lx78a.png" alt="enter image description here"></a></p>
  
  <p>is this how a use case diagram should be?</p>
  
  <p><strong>Edit #3</strong></p>
  
  <p><strong>CONCLUSION</strong></p>
  
  <ul>
  <li>An actor should point directly to use case</li>
  <li>Read more the detail about how a Use Case Diagram should be in comment on this question</li>
  </ul>