Justification
...text, graphics drawings, and images). A Multimedia Application is an Application which uses a collection of multiple media sources e.g. text, graphics, images, sound/audio, animation and/or video. Hypermedia can be considered as one of the multimedia applications. “Hypertext is a text which contains links to other texts. Unlike Hypertext, Hypermedia is not constrained to be text-based. It can include other media, e.g., graphics, images, and especially the continuous media - sound and video” (Nelson 1981). The World Wide Web (www) is the best example of hypermedia applications. “Hypertext is as much a concept as it is a form of technology” (Douglas 2000, p 24). Hypertext is the conceptual antecedent of hypermedia therefore its origin and developments must be studied. In 1945 Vannevar Bush, science advisor to Roosevelt, published an article entitled "As We May Think" in The Atlantic Monthly in which he pr...