1. Cov khoom tsis yog tsim los yog tso cai los ntawm thawj cov khoom tsim khoom. Compatibility yog raws li cov kev qhia tshwj xeeb uas muaj nyob rau hauv pej xeem thiab tej zaum yuav txawv nyob ntawm seb cov khoom siv thiab configuration. Cov neeg siv tau qhia kom paub tseeb tias kev sib raug zoo ntawm nws tus kheej. Rau ib daim ntawv teev cov khoom siv sib xws, thov hu rau peb pab neeg ua haujlwm pabcuam.
2. Lub vev xaib yuav hais txog cov tuam txhab thib peb thiab cov npe uas tsis koom nrog peb hauv txhua txoj kev. Cov duab khoom yog rau kev piav qhia nkaus xwb thiab yuav txawv ntawm cov khoom tiag tiag (xws li, qhov sib txawv ntawm qhov sib txuas los yog xim). Hauv qhov xwm txheej ntawm qhov tsis sib xws, cov khoom siv tiag tiag yuav yeej.