PFS (cov koob txhaj tshuaj uas ua tiav) puv siv hauv cov tshuaj ntxuav cov tshuaj rau cov tshuaj paug thiab ua kom muaj kev sib paug thiab ua kom muaj kev sib paug thiab tswj tau siab dua.
Cov koob tshuaj uas ua cov khoom noj uas siv rau cov tshuaj uas muaj zog rau cov tshuaj uas muaj cov khoom siv tsis sib xws thiab yog ib qho khoom siv tsis sib xws pom kev ntawm cov tshuaj raug ntim .
Ib qho ntawm cov ntsiab lus tseem ceeb ntawm kev siv PFS puv cov khoom lag luam, tiv thaiv kev pheej hmoo ua rau cov tshuaj tsis muaj zog, uas tsis siv neeg thiab ua kom tsis tu ncua ntawm kev pheej hmoo ntawm paug .
Lwm qhov kom zoo dua ntawm kev siv iav cov koob tshuaj puv tshuab yog tias nws tuaj yeem ua rau cov tshuaj muaj kuab lom thiab tsis muaj menyuam yaus, uas ua rau nws zoo tagnrho rau kev siv hauv ob qho kev lag luam thiab xyoob ntoo {2}
Hauv kev xaus, PFS puv tshuab thiab iav kev lag luam zoo kawg nkaus thiab siv cov tshuab cov khoom siv tau zoo thiab cov neeg mob ib nrab no ua rau muaj cov tshuaj tsis huv thiab cov neeg mob ib nrab no ua rau muaj kev paug thiab cov khoom noj kom zoo rau cov khoom siv tau zoo thiab cov khoom siv zoo dua qub.
Cim npe nrov: Iav cov khoom ua haujlwm fars tshuab, Tuam Tshoj iav Profile sau cov koob txhaj tshuaj puv tshuab muag khoom, chaw tsim khoom, Hoobkas