What may be the most substantial difference between voice user-interface design and traditional visual user-interface design can be encapsulated by the motto "be available".
To find out what’s tickling the fancy of weather aficionados worldwide (and to find out, what, if any, differences exist between platforms), we decided to analyze the weather categories of both the Amazon Alexa and Google Assistant stores.
In this, the second post from our three part series on principles of voice design, I'll be discussing the principle encapsulated by the dictum "be contextual". In other words, a well-designed voice application should, as much as possible, individualize the entire interaction.
The first major principle of voice design is to be adaptable. You can't constrain users into responding with words and phrases that you expect, you need to let users speak in their own words.