Haptics & DOOH | 6 experience design tips
Ultrahaptics’ plug-and-play module STRATOS™ Inspire and the Ultrahaptics Core Asset for Unity® make adding mid-air haptics to gesture- or motion-controlled digital out-of-home (DOOH) easier than ever before. Dr Hannah Limerick from Ultrahaptics’ user experience team shares six easy design tips for creating amazing haptic experiences.
Content is king, and this is no less true in haptic experiences than any other medium.
In our user studies, people describe their experience with mid-air haptics as giving them the impression of a brand reaching out to touch them. Or, in other words, mid-air haptics creates a literal touchpoint between a brand and a customer.
How, though, do you make those brand touchpoints as compelling as possible? Here are six easy design tips to create amazing haptic experiences in DOOH.
1. A call to action at the start of your experience is essential
Don’t fall at the first hurdle! Non-interactive DOOH is still the norm. Make sure you let people know your DOOH installation is interactive.
Some ways to communicate interactivity are:
- Simple text, such as “Touch to start”.
- An on-screen animation, such as a hand waving.
- “Attract loops”: usually video content of someone interacting with the installation, similar to the demo mode on arcade machines
- Nearby informational signage
- “Magic mirror”: in this, the incidental movement of passers-by is mirrored onto the screen. This can be very effective in indicating interactivity.
The good news is that, once you get a few people drawn in, your experience will likely do the rest of the work for you.
Interactive experiences naturally result in people remaining within the target zone of a DOOH installation. Because they do so, what is known as the “honeypot effect” comes into play.
This is where additional passers-by are stimulated to stop and engage by seeing others do so. It’s a very powerful way of attracting more users.
2. Create a user initiation phase
Include a brief initiation phase at the start. For example, the user might align their hands in a certain location to trigger the experience. This provides the user with a feeling of control over the interaction.
This also helps to communicate where they need to place their hand, and means the experience is not accidentally triggered by someone just walking past the DOOH installation.
3. Think about your array orientation
Ultrahaptics’ mid-air haptic effects are generated by an array of ultrasonic transducers that project tactile effects onto a user’s hands. For DOOH, typically these transducers are in the STRATOS™ Inspire haptic module.
STRATOS™ Inspire can easily be bolted onto existing audio-visual hardware (for more information, see our integration guide). Positioning the array between 75 and 90 centimetres high is usually ideal. This means most users will simply have to hold their hands out to feel haptic feedback.
It’s best to avoid angles that mean the user has to hold their hands at an awkward angle, and you may also need to inform users where to place their hand over the array (20cm above is a good rule of thumb).
Imagery to guide users as to where to place their hands can be placed either at the start of the experience or as a poster near the DOOH display.
4. Keep it simple
Simple interactions that foreground haptics are often the most effective. Ultrahaptics’ technology is unique in the way it enables the creation of ethereal and intangible sensations, such as swirls or gusts of wind, flames, crackling lightning or energy, pops or ripples. In short – a sense of magic!
5. Keep different sensory channels congruent
A general design concept for multi-modal experiences is to ensure that inputs/outputs received through different sensory channels are closely aligned (or congruent). Haptic experiences are no different.
Choose haptic sensations that relate closely to what is being conveyed in audio and video, and make sure that they fit the narrative of the concept.
6. Measure your success
Interactive DOOH incorporating gestures and mid-air haptics has been shown to have a powerful effect on user engagement and key advertising metrics such as Net Promoter Score. In order to measure your own success and analyse ROI, incorporate anonymous data capture software such as Quividi into your installation.
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