Workshop registration is functioning a bit differently this year than it has in previous years at the ACM HT and ACM DL conferences.

Normally, to register for a workshop, you need the workshop organizer's approval first, which is why in previous years, workshop registration was often collected on-site.

This year, we'd like to allow people to register ahead of time on-line. However, we'd still like workshop organizers to be able to control the registration to their respective workshops. So, we've given each workshop organizer a 4 letter code that they can hand out to whomever they'd like to register for their workshop, which then needs to be supplied by each registrant in order to register for that workshop.

If you would like to register for a workshop, but do not have the appropriate access code, please contact the appropriate workshop organizer. You can find out the name and e-mail address of the appropriate organizer by going to the workshops page, and clicking on the title of the workshop. If you have any questions about this procedure, please mail .

If you are sending your registration form by post or fax, please make sure to include the appropriate workshop access codes in the "comments" section of the registration form.