1.4. Becoming acquainted with Flex

Flex is a programmatic way (you use code) to make RIAs leverage the Flash platform. Flash is famous for interactive banner ads, cool animated portions of web pages, and interactive marketing experiences, which are often used for promotional sites.

Flex has a head start with its ability to leverage the widely recognized and mature technology of Flash Player, in addition to taking advantage of its widespread deployment. But it doesn’t lock you out of the HTML world; you can have Flex interacting with web applications using JavaScript, while at the same time being a part of the large Adobe technology ecosystem.