Scansion for dwelled4/15/2023 ![]() ![]() We recommend a minimum target size of 2 degrees to achieve the most comfortable experience. To be easily accessible, head-gaze and dwell targets need to be large enough to look at comfortably, and hold one's head stable on the target for the prescribed time. UX Guidelines and best practices Target sizes Placement of dwell buttons based on their effects becomes important for comfort. The resulting pattern is uncomfortable, so we recommend placing navigation controls in a centralized location that requires less back-and-forth. For example, a list nav with the head-gaze and dwell button at the bottom induces a loop of - look down to dwell, look up at results, look down to dwell, and so on. The yo-yo effect is an uncomfortable head movement pattern that happens when the content placement and head-gaze/dwell controls forces people to look up and down repeatedly. Consideration should be taken to enable user decision from fast/medium/slow fill speed overrides. ![]() When using a fill-effect to show these timers, animation curves of the fill color can positively influence a feeling of faster fill times. When reading text, icons, and labels, you need to provide users time to absorb the information before selecting.ĭwell interactions can have different timers based on impact of navigation - more frequently used functions will generally benefit from faster fill times, while more consequential functions may benefit from longer fill times. The feedback should help a user know what they're targeting, but not autoselect it against their intent. Head-gaze and dwell requires visual feedback to be intuitive, but too much feedback can induce anxiety. Head-gaze and dwell allows the person using the HoloLens to confidently navigate their reference material without interrupting their workflow. The garage space is loud, with the constant banging and buzzing of tools, making voice commands difficult. Their hands are busy with tools or supporting their body as they lean into the engine compartment. A good example is a person wearing a HoloLens to overlay reference information while repairing a car engine. The feature is also useful when voice isn't 100% reliable or available because of environmental or social constraints. Head-gaze and dwell is great in scenarios where a person's hands are busy with other tasks. Additionally, head-gaze and dwell is 100% reliable independent of noise interference nor silence constraints in the operating environment. Additionally, using voice to control computers isn't universally common, but it certainly is gaining steam! Head-gaze and dwell offers the most familiar and easy-to-master mechanism for working heads-up and hands-free on HoloLens. Voice commands, like gestures, can be unreliable in certain contexts, for example under excessively loud conditions. When hands are occupied with tools and parts, gestures can be tedious or impossible. ![]()
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