Kev xaiv cov ntawv ntim khoom yog qhov tseem ceeb heev. Tej yam tseem ceeb uas yuav tsum tau xam yog txawv, tab sis lawv zoo sib xws. Nws yog ib qho tseem ceeb uas yuav tau them sai sai rau cov khoom nram qab no:
1 kev tiv thaiv zoo heev.
Kev tiv thaiv kev ua tau zoo yog hais txog kev tiv thaiv ntawm tus txheem, tiv thaiv lawv los ntawm deteriorating thiab kom ntseeg tau zoo. Thaum xaiv cov ntaub ntawv ntim, yuav tsum tau them nyiaj rau lub zog, kev ruaj ntseg, kev tiv thaiv kev ua kom sov, kev kub hnyiab thiab txias, lub teeb kis mus rau, UV tsis sib haum, kev tsis haum, , tsis muaj ntxhiab thiab lwm yam kev ntsuas.
2 kev ua haujlwm.
Kev ua haujlwm tsuas yog hais txog kev ua tau yooj yim, kev ntim yoojyim, kev yoojyim, kev yoojyim seev, thiab tsim nyog rau kev ntim khoom lag luam tuaj yeem ua haujlwm. Thaum xaiv cov ntaub ntawv ntim, yuav tsum tau them nyiaj rau lub zog, ua kom yooj yim, hnav ua haujlwm, dej tsis ua hauj lwm, thim qhov hluav taws kub thiab cov khoom siv tshuaj thaiv cov khoom ntim.
3 pom kev zoo nkauj kho kom zoo nkauj.
Kev ua yeeb yam thiab kev kho kom zoo nkauj yog hais txog qhov tsos, xim thiab kev ntxhib los ntawm cov khoom, uas yuav txhim kho tau tus nqi ntawm qhov khoom thiab ua rau cov neeg xav tau yuav. Thaum xaiv cov ntaub ntawv ntim khoom, yuav tsum tau them nyiaj rau cov kev ntsuas tau zoo xws li cov nplaim thiab qhov sib txawv ntawm cov khoom ntim.
4 yooj yim rau kev ua haujlwm.
Kev yooj yim-rau-ceev kev txhais tau tias txhais tau hais tias cov khoom ntim tau zoo rau kev tiv thaiv ib puag ncig thiab pab txuag cov kev pab cuam. Thaum xaiv cov ntaub ntawv ntim khoom, yuav tsum tau them nyiaj rau cov khoom siv rov ua dua tshiab, rov ua dua lossis cov khoom siv rov ua dua.
