title: How to define 4 eyes principle in ALFA (/XACML)?
body: <p>I like to how a <strong>4 eyes principle</strong> can be defined in ALFA. (Axiomatics)</p>
  
  <p>For example:
  A bank employee wants to create a new account for a customer. He can create it, fill in all the client information and settings. But he needs to be unable to activate this account, unless his manager has approved him to do so.</p>
  
  <p>So, when the bank employee presses the "activate account" button, a policy needs to enforce that his manager has to approve this first. Sounds like an obligation to me, or are there better ways to enforce this with a policy?</p>
  
  <p>Can somebody give me an ALFA example how to doe this?</p>