Basic Technology

1
Basic Technology

• HTML, HTTP, MIME
• client / server architecture
• client-side extensions
• server-side extensions
• see Glossary Web Terminology and Web Consortium
  (W3C)

2
Markup - HTML

• HTML 2.0 - the basic
• HTML 3.2 - browser specific features
• HTML 4.0 - the standard, with CSS
• CSS - Cascading Style Sheets
• see MarkUp (W3C)

3
Protocols - HTTP

• HTTP 1.0 - slow and state-less
• HTTP 1.1 - virtual connections
• HTTP NG - fast, interaction (state),
• see Protocols (W3C)

4
Client-side Technology

• Style sheets (CSS)
• Document Object Model
• Math, Graphics - XML
• Applets - Java
• Helper Applications -- audio,
• Plug-ins - audio, video, animation, virtual
  reality
• Dynamic HTML - Javascript
• ActiveX - from Visual basic to ... Java

5
Server-side Technology

• HTTP Server - like Apache
• server side includes - shtml
• CGI - Perl, Python, Tcl
• servlets - Java
• gateways - CORBA, DCOM, agent-middleware

6
Web Architecture and Technology - issues

• protocols - HTTP
• structured documents - SGML and XML
• synchronized multimedia - SMIL
• metadata - PICS (rating)
• resource description - RDF (enabling search)
• privacy - P3P (platform for privacy preferences)
• e-commerce - see Ecommerce (W3C)
• web accessibility - ...