Xa ukhetha umbhobho we-ERW wokusila, izinto ezinokuthi ziqwalaselwe ziquka umthamo wemveliso, uluhlu lwedayamitha yombhobho, ukuhambelana kwezinto, inqanaba lokuzenzekelayo, kunye nenkxaso emva kokuthengisa. Okokuqala, umthamo wemveliso ngumba ophambili omisela ukuba mingaphi imibhobho yokusila enokuvelisa ngexesha elithile. Ukukhetha ilitye lokusila elinomthamo wemveliso onokuhlangabezana neemfuno zakho ngaphandle kokwandiswa okugqithisileyo kubalulekile ukuqinisekisa ukusebenza kakuhle kwemveliso kunye nolawulo lweendleko kuluhlu olwamkelekileyo.