title: Challenge Representing mongo db domain model on a diagram
body: <p>I am doing a thesis showing the use of technology to allow public health agencies to be warned about potential epidemic outbreak.</p>
  
  <p>I will be using mongodb since data fed into the system is expected to <code>grow significantly</code>. I'm writing my synopsis/documentation and am supposed to do a <code>domain model</code>. I'm wondering how to represent subdocument.  </p>
  
  <p>I'm still a newbie in <code>NoSQL</code>, key/value pair database so i am not focusing too much on having the right domain but rather how to represent it. I have a document which is a list of symptoms.<code>DrugSymptomMapper</code> and <code>PathologySymptomMapper</code> share that list of symptoms by keeping their ids.There is Post which is essentially GPS details and patient details(no name ,contact etc) with either list of Drugs if it's <code>pharmacy sales</code> or <code>Diagnostics</code> if it's a patient in a clinics/hospital. <code>DrugsDetails</code> and <code>DignosticsDetails</code> are really <code>subdocument</code> of Post.   </p>
  
  <p>Kindly check the picture and advise on how these subdocument and relation between documents can be represented. I am using www.draw.io thanks</p>
  
  <p><img src="https://i.stack.imgur.com/DL746.png" alt="enter image description here"></p>