/**
  * The singleton method
  *
  * @return AgileDashboard_Semantic_InitialEffortFactory an instance of the factory
  */
 public static function instance()
 {
     if (!isset(self::$instance)) {
         $class_name = __CLASS__;
         self::$instance = new $class_name();
     }
     return self::$instance;
 }
 protected function getSemanticInitialEffortFactory()
 {
     return AgileDashboard_Semantic_InitialEffortFactory::instance();
 }