Web Page - Elements

Elements

A web page, as an information set, can contain numerous types of information, which is able to be seen, heard or interact by the end user:

Perceived (rendered) information:

• Textual information: with diverse render variations.
• Non-textual information:
  • Static images may be raster graphics, typically GIF, JPEG or PNG; or vector formats such as SVG or Flash.
  • Animated images typically Animated GIF and SVG, but also may be Flash, Shockwave, or Java applet.
  • Audio, typically MP3, ogg or various proprietary formats.
  • Video, WMV (Windows), RM (RealMedia), FLV (Flash Video), MPG, MOV (QuickTime)
• Interactive information: see interactive media.
  • For "on page" interaction:
    • Interactive text: see DHTML.
    • Interactive illustrations: ranging from "click to play" images to games, typically using script orchestration, Flash, Java applets, SVG, or Shockwave.
    • Buttons: forms providing alternative interface, typically for use with script orchestration and DHTML.
  • For "between pages" interaction:
    • Hyperlinks: standard "change page" reactivity.
    • Forms: providing more interaction with the server and server-side databases.

Internal (hidden) information:

• Comments
• Linked Files through Hyperlink (Like DOC,XLS,PDF,etc).
• Metadata with semantic meta-information, Charset information, Document Type Definition (DTD), etc.
• Diagramation and style information: information about rendered items (like image size attributes) and visual specifications, as Cascading Style Sheets (CSS).
• Scripts, usually JavaScript, complement interactivity and functionality.

Note: on server-side the web page may also have "Processing Instruction Information Items".

The web page can also contain dynamically adapted information elements, dependent upon the rendering browser or end-user location (through the use of IP address tracking and/or "cookie" information). From a more general/wide point of view, some information (grouped) elements, like a navigation bar, are uniform for all website pages, like a standard. These kind of "website standard information" are supplied by technologies like web template systems.