Brian, As a simple answer, you can address it with a description for that section stating that either field is required and grouping them into logical areas (e.g. Sign-in information, Contact information, Personal details, etc).
Here are some samples from Chris Messina's flickr design patterns stream: http://www.flickr.com/photos/factoryjoe/3048752006/in/set-72157609745241966/(look at how the contact group - top right - is excluded from being required) http://www.flickr.com/photos/factoryjoe/362711703/in/set-72157600010086705/(notice the -OR- which you could implement to state that at least one of the fields is required) Hope this helps, E On Wed, Oct 14, 2009 at 5:55 AM, Brian Mila <brian.m...@trizetto.com> wrote: > Can anyone point to examples of forms that require one or the other of > something? For instance, a contact form where either email -or- phone > is required. The context is I have a web app that has search fields > in which some combination of elements is needed. There could be as > many as a dozen different search criteria, and out of those there are > up to four "primary" fields and only one of which needs to be filled > in (doesnt matter which one, they have equal weight). > ________________________________________________________________ > Welcome to the Interaction Design Association (IxDA)! > To post to this list ....... disc...@ixda.org > Unsubscribe ................ http://www.ixda.org/unsubscribe > List Guidelines ............ http://www.ixda.org/guidelines > List Help .................. http://www.ixda.org/help > ________________________________________________________________ Welcome to the Interaction Design Association (IxDA)! To post to this list ....... disc...@ixda.org Unsubscribe ................ http://www.ixda.org/unsubscribe List Guidelines ............ http://www.ixda.org/guidelines List Help .................. http://www.ixda.org/help