public function applyConclusiveMatch($userAgent) {
		$deviceId = WURFL_Constants::GENERIC;
		if (WURFL_Handlers_Utils::checkIfStartsWith($userAgent, 'Mozilla')) {
			$deviceId = $this->applyMozillaConclusiveMatch($userAgent);
		} else {
			$tolerance = WURFL_Handlers_Utils::firstSlash($userAgent);
			$deviceId = $this->getDeviceIDFromRIS($userAgent, $tolerance);
		}
		
		return $deviceId;
	}