1. Kev ua haujlwm zoo: Ua ntej txij nkawm, cov dej ntws ntws los yuav tsum raug kaw thiab nruab nrab ntawm nruab nrab kom ntseeg tau tias lub system dawb ntawm siab. Yog tias nruab nrab yog cov nplaim taws, tawg lossis tshuaj lom, kev tiv thaiv kev nyab xeeb ntxiv yuav tsum tau ua.
2. Ib feem sib txuam: thaum hloov cov ntsaws ruaj ruaj lossis cov khoom siv tseem ceeb, cov ntaub ntawv ntawm tib qho kev tshwj xeeb yuav tsum raug xaiv los yog jamming vim qhov tsis sib xws.
3. Kev cob qhia kev tshaj lij: Kev tu tus neeg ua haujlwm yuav tsum tau paub txog cov qauv kev paub, thiab kev saib xyuas cov khoom siv tsis zoo vim yog cov haujlwm tsis raug cai.
4. Tiv Thaiv Txij Nkawm: Tsim cov phiaj xwm tiv thaiv kev tiv thaiv raws li cov yam ntxwv ua haujlwm ntawm cov kab ke, thiab tshuaj xyuas cov kev pabcuam tsis yooj yim ntawm li qub.
