Cov haujlwm yuav tsum tau ua ntawm steritter

1. Lub Siab yuav txiav tag nrho cov yob lossis ntawv ntawm cov ntaub ntawv raw nrog tsau ntev.
2. Qhov chaw ruaj khov-ntev kev tswj hwm tau muab faib ua cov zoo nkauj thiab kev sib cais ntawm kev sib cais.
3. Qhov tseem ceeb tshaj plaws Performance index ntawm kev ua kom ntev-ntev yog lub slitting yog qhov tseeb, thiab qhov ntev li cov khoom tiav yog qhov zoo.
4. Qhov txiav ntev tuaj yeem raug teeb tsa tsis tu ncua. Yog hais tias qhov tseeb txiav ntev tau yuam kev, nws yooj yim rau calibrate los ntawm kev teeb tsa tsis muaj.