The data comes from the company, not a form
The card is built over the organisation and person records that already exist. When a phone number or a job title changes, it changes on the card.
Public and shareable
Each card has its own public address — send it as a link or have it scanned from a phone. It asks nothing of the person receiving it.
Worth knowing
Digital business cards go wrong exactly like printed ones, only more slowly: someone changes department and nobody updates the page. Here there is no second place to update.