Xa ukhangela i-SGML, i- HTML , kunye ne-XML, unokuqwalasela oku kuluhlu lweentsapho. I-SMGL, i-HTML kunye ne-XML zizo zonke iilwimi zeelwimi . I-markup term ithola ingcambu yayo kubahleli ababenokuhlaziywa kubhali, imiqulu yesandla. Umhleli, xa uhlolisisa umxholo, uya kuphawula, umbhalo ukucacisa iindawo ezithile. Kwikhompyutheni yekhompyutheni, ulwimi lokumaketha liluhlu lwamagama kunye neempawu eziqakathekisa umbhalo ukuze zichazwe ngumbhalo webwebhu. Umzekelo, xa udala iphepha le-intanethi, ufuna ukukwazi ukufumana iziqendu ezihlukeneyo uze ufake iileta ngohlobo olusibindi. Oku kufezwa ngeelwimi zokumakisha. Emva kokuba uqonda iindima ze-SGML, i-HTML kunye ne-XML idlala kwi-web design webpage, uza kubona ubudlelwane beelwimi ezihlukeneyo. Ubudlelwane phakathi kweSGML, i-HTML kunye ne-XML yintlaninge yentsapho ekunceda ukwenza iiwebhsayithi zisebenze kunye ne-web design.
SGML
Kule ntsapho yeelwimi zokurhweba, uLwimi oluPhezulu loLwimi oluPhezulu (SGML) ngumzali. I-SGML inikeza indlela yokuchaza ulwimi lweelwimi kwaye ibeka umgangatho wefom yabo. Ngamanye amagama, i-SGML ithi ezinye iilwimi zinokukwazi okanye ezingenako ukwenza, zeziphi iinkalo kufuneka zifakiwe, njengamathegi kunye nesakhiwo esisiseko soLwimi. Njengoko umzali udlula iimpawu zofuzo kumntwana, i-SGML idlula isakhiwo kunye nokufomatha imigaqo yokusetyenziswa kolwimi.
HTML
Ulwimi lweMarpText Markup (HTML) ngumntwana, okanye isicelo seSGML. I-HTML eqhele ukuyila iphepha le-Internet. Ukusebenzisa i-HTML, ungazifaka imifanekiso, udale amacandelo ephepha, ubeke amaphepha kwaye uqondise ukuhamba kwephepha. I-HTML yilwimi lokuloba olwenza ifom nokubonakala kwiphepha lewebhu. Ukongeza, usebenzisa i-HTML, ungeze ezinye iifayili kwiwebhusayithi ngeelwimi zokubhala, njengeJavaScript. I-HTML yilwimi ebalulekileyo esetyenziselwa ukuyila iwebhusayithi.
XML
ULwimi oluPhezulu olongezelelweyo (XML) ngumzala ku HTML kunye nomntakwabo ku-SGML. Nangona i-XML yilwimi lokuloba kwaye ngoko yingxenye yentsapho, inemisebenzi eyahlukileyo kune-HTML. I-XML yi-subset yeSGML-yinike amalungelo ukuba isicelo, njenge-HTML, asinayo. I-XML ingachaza izicelo zayo. Inkcazo yeZibonelelo zeMithombo (RDF) yi-XML. I-HTML imiselwe ukuyila kwaye ayinayo i-subset okanye izicelo. I-XML ifakwe phantsi, okanye ukukhanya, inguqu ye-SGML, eyenzelwe ukusebenza kunye nomda womda we-bandwidth . I-XML izuze iimpawu zofuzo kwiSGML, kodwa idalwe ukwenza intsapho yayo. Iimpahla ze-XML ziquka i-XSL ne-XSLT.