title: Use Case Diagram - two actors to one use case
body: <p>I want a use case - store information system. I am to present the owner's requirements on a use case diagram, incl. a customer who, after logging in, does shopping, and an admin, who after logging in, manages prices, etc.</p>
  <p>Can I log into the system generalize from one use case - two actors combined with one use case (below)? How can I 'improve' the diagram?</p>
  <p><a href="https://i.stack.imgur.com/T6YNh.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/T6YNh.png" alt="enter image description here" /></a></p>