Ukusebenzisa umbono, kuzodingeka kuphela amakhadibhodi okupakisha futhi ukupakisha. Noma yiziphi izingcezu zamakhadibhodi zifanele, ububanzi bazo buzohambisana nosayizi wezicathulo. Ukuphumula kungahlale kuhlanganiswe noma kuhlanganiswe ezingxenyeni ezithile.
Umnyombo womsebenzi ukudala amaseli ezintathu. Bazoqoqwa ngonxantathu banye, bahlukaniswe ngezinto ezihlukaniswe yizingxenye ezi-3 ezilinganayo.
Umsebenzi wokuqala ukuhlanganisa umsebenzi wasendlini wendlu ubatholile ngosizo lweScotch.
Ngemuva kwalokho "izindlu zidinga ukuxhumeka nje. Bangaki babo, kuya ngesilinganiso seminyango yezicathulo kanye nendawo yamahhala etholakalayo.
Design Universal. Ingakhiwa ngamathafa amaningana, futhi uma kunesidingo, noma siqoqe ngezigaba eziningana.
Ngemuva kwenombolo efiselekayo yezakhiwo isethwe, kuyadingeka ukuqhubeka nokulungisa ukwakheka, okukugwinya amahlandla amaningi azungeze umngcele.
Uma ufisa, umkhawulo ungasindiswa ngokungeziwe. Ngakho-ke umgqugquzeli uzobukeka ebuhlungu ngokwengeziwe, futhi ukuphathwa kwayo akuphendukeli endaweni yokubuyisa uthuli.
Ngemuva kwalokho ihlala kuphela ukubeka umklamo oqoqwe endaweni futhi ugcwalise izicathulo zamaseli.
Imininingwane eminingi maqondana nomenzi womhleli wezicathulo kuvidiyo engezansi:
