Wednesday, March 4, 2009

36.Web design

Web Page design requires conceptualizing, planning, modeling, and executing electronic media content and its delivery via the Internet using technologies (such as markup languages) suitable for rendering and presentation by web browsers or other web-based graphical user interfaces (GUIs).

The intent of web design is to create a web site (a collection of electronic files residing on one or more web servers) that presents content (including interactive features or interfaces) to the end user in the form of web pages upon request. Such elements as text, forms, and bit-mapped images (GIFs, JPEGs, PNGs) can be placed on the page using HTML, XHTML, or XML tags.

Displaying more complex media (vector graphics, animations, videos, sounds) usually requires browsers to incorporate optional plug-ins, such as Flash, QuickTime, and Java run-time environment. Other plug-ins are embedded in web pages, using HTML or XHTML tags.Improvements in the various browsers' compliance with W3C standards prompted a widespread acceptance of XHTML and XML in conjunction with Cascading Style Sheets (CSS) to position and manipulate web page elements.

The latest W3C standards and proposals aim to deliver a wide variety of media and accessibility options to the client without employing plug-ins.[cStatic pages don’t change content and layout with every request unless a human (web master or programmer) manually updates the page. Dynamic pages adapt their content and/or appearance depending on the end-user’s input or interaction or changes in the computing environment (user, time, database modifications, etc.)




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