Feature Switches

• A direct result of engaging in continuous integration
• How it works:
  • Usually the toggling happens in the UI.
  • Defines a sybol list of features that you may want to hide, e.g. “petSurvey”, “profileUpload”, “FacebookIntegration”
  • And then “guard” the corresponding html, making sure user cannot get to that feature
  • Site Administrator is able to turn on and off features without re-deploying

    <toggle name="petSurvey">
      <p>Take our new <a href = 'petSurvey'>pet survey</a></p>
    </toggle>

• Reasons
  • Hide a feature that is not done yet
  • Hide a feature that you discovered is broken
  • Hide a feature that is killing performance
  • Split testing