up to a certain extent. Figures 15 and 16 show that in 60% of the MOOC platforms support use of videos
having subtitles (deaf and impaired hearing people) and images having an alternative text description
(visually impaired people). Furthermore, in 40% of these the platforms support making transcripts available
in downloadable Word (visually impaired people), Interface text contents can be processed by a text reader
(visually impaired people), and Interface is navigable by keyboard (visually impaired and/or disabled
people). Only in one of the five platforms evaluated, does the platform allow video subtitles to distinguish
between vocal sounds and non-vocal sounds (deaf and hard-of-hearing people), Video contents have a
secondary integrated screen with the same content in sign language (deaf and hard-of-hearing people), and
Between platform services there is a Verification Service (feedback) to ensure that features work perfectly
(people with special needs). None of the platforms offers users a kind of Technical Service Department for
Accessibility, either via synchronous or asynchronous (people with special needs).
Concerning External platforms evaluated, in 4 of them, Interface is navigable by keyboard (visually impaired
and/or disabled people). In half of the platforms, the videos have subtitles (deaf and impaired hearing
people) and Interface text contents can be processed by a text reader (visually impaired people). It must be
noted that in none of these platforms doVideo contents have a secondary integrated screen with the same
content in sign language (deaf and hard-of-hearing people).