title: What are inputs to decisions (in relation to conditions and condition coverage)?
body: <p>In the context of DO-178B, the number of conditions and inputs might differ: <code>(A &amp;&amp; B) or (A &amp;&amp; C)</code> has three inputs but four conditions because each occurence of <code>A</code> is considered a unique condition.
  Multiple condition coverage requires 2^n test cases, where n is the number of inputs.</p>
  
  <p>But what about this:</p>
  
  <pre><code>if(X&gt;100 &amp;&amp; X&lt;200 &amp;&amp; X!=50)
  </code></pre>
  
  <p>There are three conditions using the same input but I am sure that is not what the authors mean, otherwise I would need just two test cases to cover all combinations among those conditions.</p>
  
  <p>Then I wonder, what is then meant by input - a boolean value in the decision? That would make sense in the quote I mentioned, as A will have the same value in all occurences. But I would like to understand and know if my thought is correct.</p>