Changes

* there is not typically a simple means to automatically translate a spoken language word to a sign-language representation, because sign-language works typically more on ideas and concepts rather than letters and words; in addition, multiple things can be communication in one sign language sign that may take multiple sentences to communicate in a spoken language

* for most sign languages there is no written representation available - people rather use as a written communication means the written representation of their local spoken language

Discussion:

* (-) sign languages can generally only be represented through a visual recording of a person performing the language

* (-) automated analysis, transcription, or translation between text and sign-language is generally not possible

* (-) being extra data that accompanies a video or audio file, a player needs to be specifically adapted to support display and handling of this kind of data