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When usability expert Jakob Nielsen proclaimed Flash was 99 percent bad, he was right on at least one account: accessibility. Until the release of Flash MX and the Flash 6 player, about 41 million disabled Web users could not take full advantage of Flash Web sites (According to World Bank in 2000). Even with Macromedia's move to support Section 508 guidelines, the government's plan for Web accessibility, the majority of Flash developers have not adopted the necessary best practices. Advertisement In previous versions of the Flash player, disabled Web users were unable to view any content generated by Flash. The Flash 6 player took a big step in this regard by retroactively providing text equivalents to the application's content. This change has allowed assistive Web browsers such as screen readers to view or speak Flash content. Many Flash developers question the need for Flash accessibility since proper accessibility requires a text-only version of existing Web content. This is a myth: images and animation can actually help users with nonvisual disabilities such as dyslexia. Flash can also benefit the blind by incorporating sound to notify the Web surfer of events.
Perry, Jason Michael. O'Reilly and Associates (2002). Design>Web Design>Accessibility>Flash