Basically Web Site Development involves following processes to make information in the form of text, images (still pictures), audio and video available on the internet so that this information is accessible worldwide over the internet;
DEVELOPING SITE STRUCTURE : Planning and Deciding on how many pages the site will have, the page titles they will have, the colors and designs to be used, etc.
INTERFACE DESIGN AND PRODUCTION: Translation of the decided site structure into web pages by a web site designer.
TECHNICAL ENGINEERING: Web programmers writing special programs and adding them to the web pages to create special effects or to make web pages behave in a special way.
PUBLISHING/MARKETING/LAUNCH: Involves placing the web pages on a server, thus publishing, Marketing your site, and finally launching the site.