??? ?? ????? ???? ????? ????? ?? ???? ????? ?????? ??? ?? ??? ???? ???? ????? ???. ?? ???? ????? ????? ????? ?? ???? ???? . ??? ?? ?????? ?? ????? ???? ??????? ?????? ? ????? ???? ???? ???? ??? ?? ?? ???? ???? ??????? ????. ???? ???? uality assurance ???? ????? ???? ????? ????? ????? ???? ???? ????? ?????, ??????/????/????? ???? ????