title: What UML diagram should I use for simple application features..?
body: <p>I'm really confused about this, tried to read a lot about diagrams but I just can't understand what is most suitable for this case.</p>
  
  <p>I need just TO SHOW that I have 10 modules, which have 10 features. One of that feature can call other module feature.. </p>
  
  <p>something like this. very simple. it's better just to be some kind of blocks with depedencies[as features] and how each module block will interact with another block</p>
  
  <p>purpose is to show what open source system doesn't have, and what this system <strong>WILL</strong> have after modification. And ofcourse with colors, it's easy to display all modifications.. than it's easier to start planning a project and count how much hours will be spent on things you need to make..</p>