public static final function searchRelativeProject(MemberIdentifier $member) {
        $result = array();
        foreach (self::$REGISTERED_PRROJECT_INSTANCES as $project) {
            /* @var $project Project */
            $members = $project->getAllMembers();
            if (isset($members[$member->getMemberId()])) {
                array_push($result, $project);
            }
        }
        return $result;
    }