URI/IRI, HTTP Web Architectural Principles XML Infosets; RDF(S) Graphs XML, Namespaces, Schemas, XQuery/XPath, XSLT, DOM, XML Base, XPointer, RDF/XML, SPARQL
在頂層包含著六個(gè)框,分別與W3C主要的活動(dòng)組相對(duì)應(yīng):Web Applications, Mobile, Voice, Web Services, Semantic Web, and Privacy。
"Interaction"(“交互”)框中羅列著:XHTML, SVG, CDF, SMIL, XForms, CSS, 和 WCID. "Mobile"(“移動(dòng)”)框中羅列著 XHTML Basic, Mobile SVG, SMIL Mobile, XForms Basic, CSS Mobile, MWI BP. "Voice"(“語(yǔ)音”)框中羅列著 VoiceXML, SRGS, SSML, CCXML, and EMMA "Web Services"(“Web服務(wù)”)框中羅列著 SOAP, XOP, WSDL, WS-CDL, and WS-A. "Semantic Web"(“語(yǔ)義的Web”)框中羅列著 OWL, SKOS, and RIF. "Privacy"(“保密”)框中羅列著 P3P, APPEL, XML Encryption, XML Signature, and XKMS
一個(gè)橙色的橫條把這些領(lǐng)域聯(lián)系在一起:Web Accessibility(Web可訪問性), Internationalization(國(guó)際化), Mobile Access(移動(dòng)訪問), Device Independence(設(shè)備獨(dú)立), and Quality Assurance(質(zhì)量保證)。