BayCHI is the local San Francisco Bay Area chapter of ACM SIGCHI.

• ACM is the Association for Computing Machinery, a society for information technology professionals with over 75,000 members worldwide.
• SIGCHI is an ACM Special Interest Group on Human-Computer Interaction, with over 6,000 members worldwide.
• BayCHI officially reports to ACM and maintains a close relationship to SIGCHI. BayCHI is the largest local ACM SIGCHI chapter in the world, with 1,200 members.

BayCHI is organized and operated exclusively for educational and scientific purposes in the area of Computer-Human Interaction.

Its services include the following:

• Collecting and disseminating information through a newsletter, announcements, and other physical and/or electronic media.
• Sponsoring meetings, conferences, symposia, discussion groups, and workshops.
• Organizing sessions at conferences of the ACM.
• Serving as a source of information for its members, other subunits of the ACM, and the general public.
• Working with subunits of the ACM on activities such as lectures, professional development seminars, and technical briefings.