title: Bpmn - How to model an optional task
body: <p><a href="https://i.stack.imgur.com/9yFgg.png" rel="noreferrer"><img src="https://i.stack.imgur.com/9yFgg.png" alt="enter image description here"></a></p>
  
  <p>After the Task 1 is completed, we need to spawn an optional task, based on a condition. The process completion does not depend on this optional task completion.</p>
  
  <p>What is the correct way to design this model ?</p>