title: How to create a Block Diagram
body: <p>May i know how to draw a Block Diagram for a system/ software development? I searched online and i couldn't find any guidelines or good example. </p>
  
  <p>What should be on the top in Block Diagram? </p>
  
  <p>Should i arrange the Block Diagram based on my Class Diagram (Inheritance, interface, abstract etc)? </p>
  
  <p>Why use Block Diagram?</p>
  
  <p>What does Block Diagram actually show? The process? The component? The overall architecture?</p>
  
  <p>Can anyone please provide me any links regarding Block Diagram if there is any?</p>