Secondly some examples of these modality cooperation will be described as illustrations. The accessibility aims Offering an access to the W3 affords a challenging opportunity to the blind to get information. This is a great opportunity for blind people who cannot access printed documents. It is why HTML tags offer appropriate labeling useful for the displaying of electronic documents on screen. Here, the interpretation process tries to present the HTML component to the user in the best way possible according to these user's sensory capabilities i.e. with a minimum cognitive effort.
Interactive systems can benefit from the sound features.
The cooperation model of aural and tactile modalities, described below, tries to reduce this weakness. This language is mainly used to encode information to be presented in a visual form. For instance, an efficient interpretation of typographic attributes allow to clearly identify the text from its presentation features. Results of the interpretation process activate the appropriate multimodal strategies of presentation. For example, if a part of a text is in bold characters, the user interface translates this attribute by synthesizing this piece of text at a slower speed for individual word emphasis.