title: Files as input and output in plantuml
body: <p>I am trying to write the following flow:</p>
  
  <p>The activity I describe consists in two binaries. The first one takes in input one file, and generates several (let's say two). These two files, plus another one from the environment, are fed to a second binary, which will generate an output file.</p>
  
  <p>I would like to use plantuml to describe this, but the documentation doesn't really help - it doesn't go to the inputs/outputs of activities.</p>
  
  <p>I can draw files with <code>file myFile</code>, but I didn't manage to link them to boxes. Should I rather use a usecase diagram or an activity diagram for this? Can someone show me how to draw an arrow from a <code>file</code> to a <code>(binary)</code> ?</p>
  
  <p>I am now standing with</p>
  
  <pre><code>@startuml
  file myFile
  (firstBinary)
  @enduml
  </code></pre>
  
  <p>which doesn't really do what I want.</p>