Rau PE yeeb nkab vuam cov cuab yeej siv, cov tuam txhab xav kom muaj kev txhim kho zoo ntawm lawv tus kheej, yog li ib txwm lawv xav tau cov neeg tsim khoom muaj peev xwm tsim cov khoom siv vuam ntau coj los ua cov haujlwm muag khoom muaj feem xyuam. Qhov ntau cov tshuab thiab khoom siv uas cov chaw tsim khoom tsim muaj, qhov ntau ib txwm paub nws muaj peev xwm nce nyiaj txiag kev lag luam ntawm lub tuam txhab. Yog li, raws li tus tsim cov tshuab no thiab cov cuab yeej siv, kev ua haujlwm dab tsi yuav tsum tau ua kom nws cov cav nrawm nrawm dua thiab kom ntseeg tau tias cov chaw tsim khoom muaj cov tshuab thiab khoom siv ntau dua? Nov yog cov lus qhia luv luv.
Yog hais tias qhov ntau lawm ceev ntawm PE yeeb nkab vuam cov khoom siv yog txhawm rau txhim kho, thawj qhov uas cov tuam ntxhab yuav tsum tau ua yog ntau yam ua ntej npaj ntau lawm. Tom qab cov chaw tsim khoom ntawm cov cuab yeej siv tshuab tau ua tiav lawv tus kheej npaj ua ntej, lawv tuaj yeem ua rau cov chaw tsim khoom' s ntau lawm thiab ua haujlwm ua haujlwm tau nrawm thiab sai, thiab tseem tuaj yeem ua tiav qhov kev txhim kho ntawm cov kev ua kom nrawm ntawm cov khoom siv kho tshuab.
Txhawm rau txhawm rau txhim kho cov txheej txheem nrawm ntawm PE yeeb nkab vuam cov cuab yeej siv, ntxiv rau qhov chaw tsim khoom' s npaj rau kev tsim khoom thiab ua, nws kuj xav kom cov chaw tsim khoom txhim kho nws cov tshuab kev tsim tawm. Cov khoom siv ntau tshaj thiab kev tshaj lij ntawm cov chaw tsim khoom' s ntau lawm cov tshuab los tsim cov tshuab thiab khoom siv, kev ua haujlwm sai dua thiab kev ua haujlwm tuaj yeem nqa tawm.
Qhov saum toj no yog kev ua haujlwm ceev ntawm PE yeeb nkab vuam vuam cov khoom siv uas xav kom ua kom zoo dua. Raws li cov chaw tsim khoom ntawm cov khoom siv no, nws yog qhov tsim nyog los ua cov haujlwm uas tsim nyog.
