Rau lub ntsej muag lees paub lub ntsej muag ntse, cov lus qhia ua haujlwm tseem ceeb rau kev qhia txog xwm txheej, qhia ntau hom lus, thiab txhim kho lub ntsej muag paub (cov lus tawm tswv yim tiag tiag, tshawb pom lub neej). Lawv koom ua ke ntau lub luag haujlwm (password nkag, video doorbell, ceeb toom) thaum ua kom zoo UX (kev cai, hom qis zog) thiab kev ruaj ntseg (cov ntxaij vab tshaus tsis pub lwm tus paub, nws pib kaw).