title: How to draw an Enterprise Architecture Diagram?
body: <p>I am assigned a task in the job to draw a enterprise architecture diagram. We have stack of applications and they talk to each other. For example, Customer fill up the registration form from main site then it goes to one of our main applications to approve then once it is approved then customer can able to log in to portal. The portal is actually a REST api on back-end.</p>
  
  <p>How can I express this in a diagram? What type of diagram it could be? Should it really call enterprise architecture diagram? Does it fall to any category?What type of UML notation I can use if any? </p>
  
  <p>Thanks a lot in advance</p>