Concerning this guideline, YouTube performs generally well, as
it keeps the user informed about what the system is doing, by providing information about loading and total
video times.
Match Between System and the Real World
This heuristic verifies to what extent the language of the interface
respects the user s familiar language and concepts.
On the one hand the video controls, similar to domestic video
players, respect real-world conventions,but on the other hand, there is a vast amount of unclear terminology
and associated functions, such as: quicklists, featured videos or channel names.
User Control and Freedom
This is the principle in which YouTube performs the best. In
fact, the use of the conventional video
commands
allows full control and freedom to the user who then uses the interface skilfully.
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