title: Is this Entity Data Model Design OK for simple blog project?
body: <p>I am creating sample blog project and designed this entity data model.</p>
  
  <p>Is there anything else required, I mean in association and navigation property...</p>
  
  <p><img src="https://i.stack.imgur.com/wjchu.png" alt="Entity Data Model Design"></p>
  
  <p>I have created this design on the following basis..</p>
  
  <ol>
  <li>user can have many post ( 1 to many )</li>
  <li>user can have many comments ( 1 to many )</li>
  <li>user can have many tags (1 to many )</li>
  <li>post can have many comments ( 1 to many )</li>
  <li>post can have many tags ( 1 to many )</li>
  </ol>
  
  <p>Do I need to create association for 1 to 1 between post and user
  like</p>
  
  <ol>
  <li>1 post must and can have 1 user ( 1 to 1 )</li>
  <li>tag must and can have 1 user ( 1 to 1 )</li>
  </ol>
  
  <p>I am confused that I already have created 1 to many relationships between all of this and I have the required navigation properties. Is it necessary to create 1 to 1 association mentioned above?</p>