1. Raws li seb cov khoom siv txav mus los, nws tuaj yeem muab faib ua cov kab nrib pleb ruaj khov thiab cov kab ntau lawm.
2. Raws li qhov ntau ntawm cov ntau lawm, nws tuaj yeem muab faib ua ib kab ntau lawm thiab ntau ntau cov kab ntau lawm.
Raws li qhov degree ntawm kev tsim khoom txuas ntxiv, nws tuaj yeem muab faib ua cov kab txuas txuas ntxiv thiab cov kab sib txuas ua ke.
4. Raws li kev siv lub suab nrov, nws tuaj yeem muab faib ua cov kab ntau lawm thiab cov kab sib dhos pub dawb.
Raws li qib ntawm kev siv tshuab, cov kab ntau lawm tuaj yeem muab faib ua peb hom: phau ntawv, tshuab, thiab automated.