title: What is POSIX PSE51 that Adaptive AUTOSAR based on?
body: <h1>What is POSIX PSE51 that Adaptive AUTOSAR based on?</h1>
  
  <p>While studying Adaptive AUTOSAR, I found 'Adaptive AUTOSAR is based on POSIX PSE51'.</p>
  
  <p>However, I cloudn't understand what is POSIX PSE51.</p>
  
  <p>Someone can answer this question?</p>
  
  <p>I want to know following...</p>
  
  <ul>
  <li>Where can I read the paper of POSIX PSE51?</li>
  <li>What is API supported in POSIX PSE51?</li>
  <li>Adaptive AUTOSAR will become like Linux? File System, System Call and so on.</li>
  </ul>