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Elevator control software can be model-checked to verify both safety properties, like "The cabin never moves with its door open" , [ 1 ] and liveness properties, like "Whenever the n th floor's call button is pressed, the cabin will eventually stop at the n th floor and open the door

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Sometimes it may be used also in the more narrow sense of the peer-level web meeting context, in an attempt to disambiguate it from the other types known as collaborative sessions

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