AI voice assistants are on the rise, already spread far and wide, soon to be everywhere. Speech can be really effective, but conversations are deeply personal. It’s highly complex, context dependent, and even a slight mistake can break the flow, yet it comes to us so naturally. Technically seen, however, things are not that simple and from a design perspective this is rather unchartered territory. Conny and Pascal have teamed up, bringing together dev and UX, to work on VUIs at USEEDS. We want to share what we’ve learned so far, about navigating hurdles and arriving at a tried and tested approach for an integrated design, development and validation process, With help from our mistakes and insights, your next voice project is sure to be a success.