UX Glossary

Auto-tabbing

A Web site feature whereby the data entry cursor automatically moves from one entry field to the next as a user enters a pre-determined number of characters. For instance, when entering phone number data in three separate entry fields of three digits, three digits, four digits, the data entry cursor would auto-tab from the first field to the second field once the user has entered three digits, and again from the second field to the third field once the user has entered another three digits.


https://usabilitest.com/glossary/auto-tabbing