New UI design pattern added to our Open Library: Required Form Fields

Indicating clearly required or optional fields on a form tells the user what needs to be filled in to complete the form. If most of the form fields are optional, use text or asterisk (*) next to each field to indicate required fields. If you choose asterisk, provide a legend which tells the meaning of it.

If most questions on a form require an answer, indicating all required fields would add unnecessary info to the form. In this case indicate the ones that are optional using an “Optional” text next to the optional field labels.