VI. How To?
6.2. Accessibility Implementation Approach
There are two different approaches to implement accessibility to a website: Graceful degradation and Progressive enhancement, both are very similar, and in the same time at the opposite of each other. These two approaches focus on the fact that if, for example, a script cannot be executed on the page (because the user does not have the latest technologies, or intentionally disabled the features, that would allow its execution) it must not make the page or application unusable.