Yog tias qhov zoo thiab kev ua tau zoo ntawm PE yeeb nkab vuam tshuab yuav tsum tau lav, thawj qhov chaw tsim khoom yuav tsum tau ua yog yuav cov khoom siv raw rau kev tsim khoom. Qhov zoo dua qhov zoo thiab kev ua tau zoo ntawm cov khoom siv raw khoom yuav los ntawm cov chaw tsim khoom, qhov ntau dua qhov tshwm sim uas cov chaw tsim khoom yuav tsim cov khoom siv vuam zoo nrog kev ua haujlwm zoo. Tom qab tag nrho, tsuas yog cov khoom siv raw khoom zoo tuaj yeem tsim cov khoom siv tshuab zoo.
Yog tias qhov zoo thiab kev ua tau zoo ntawm PE yeeb nkab vuam tshuab yuav tsum tau lees paub, ntxiv rau kev yuav khoom ntawm cov khoom siv raw rau kev tsim khoom, cov chaw tsim khoom yuav tsum txhim kho nws tus kheej cov cuab yeej tsim khoom. Kev tshaj lij thiab kev tsim khoom siv tshuab tau zoo tuaj yeem khaws cov kev ua tau zoo thiab cov ntaub ntawv zoo, thiab xyuas kom meej tias cov cuab yeej siv tshuab tsim los ntawm cov chaw tsim khoom muaj cov khoom zoo thiab kev ua haujlwm zoo.
