Performance requirements

    From Consumerium development wiki R&D Wiki

    Performance requirements determine if a system is actually used or not.

    See also protocol requirements, hardware requirements, software requirements.

    The Consumerium buying signal seems to have very tight timing requirements, and also must minimize visual distraction. If it is also handsfree i.e. via a headset, that is also very important, as it might save seconds of fumbling, and enable use in situations where even a one-handed interface is of no use at all.

    Most breakthrough design happens by thinking hard about actual performance questions. Some to consider:

    • how long does it take to shift eye contact to a video display from what you are looking at, like the aisle or your children, and shift back?