Wednesday, May 19, All-at-Once

08:30 - 18:30

Other Activity: CHIkids and childcare

(Also available Sunday, Monday, Tuesday, and Thursday)

There are two options: the traditional child care option and CHIkids. CHIkids is a place where kids, adults, and technology come together with common goals and do meaningful things.

The philosophy of the CHIkids program is built around the belief that technology is a tool to learning. CHIkids is about what can happen when technology is a catalyst. With the tools of technology, children can be conference reporters, web designers, multimedia storytellers, software testers, conference attendees, and more!

The innovative CHIkids program has been expanded for CHI 99. CHIkids combines the feeling of summer camp with the fun of technology, all as a part of the unique conference experience. This year's CHIkids program will provide kids with new extended opportunities for meaningful technology experiences.

• The traditional child care option offers children 6 months to 3 years, fun-filled, developmentally appropriate activities.
• CHIkids provides children 3 to 15 years of age with educational, purpose-driven technology experiences. Children ages 3 to 7 will use CD-ROMs, test new software, as well as be provided with a mixture of off-computer activities to complement their technology experiences. Children ages 8 to 15 will be provided with two main areas of exploration: creating multimedia stories in the Multimedia Storytelling area and being conference reporters using desktop publishing tools and the web in the CHIkids Newsroom.

All CHIkids activities will be led by a team of CHI volunteers with experience in technology, kids, and fun! Assistance will be provided by KiddieCorp, our experienced child care facilitators. Each day, children will be able to choose among various activities. The registration fee is US$75 per day, and includes lunch, snack, and CHIkids T-shirt. An optional field trip will be offered for CHIkids, 8 years or older, on Thursday, 20 May.

CHIkids REGISTRATION
For more information, please contact KiddieCorp via email or phone. Space is limited, and there will be no on-site registration. Therefore, registration will be on a first-come, first-served basis. A waiting list will be formed if all spaces are filled. Waiting list registrants will be notified if space becomes available.

For questions about the CHIkids traditional child care option:
Sue Ann Balogh, KiddieCorp
Email: chikids@kiddiecorp.com
Tel: +1 619 455 1718
Fax: + 1 619 455 5841
5665 Oberlin Drive, Suite 102
San Diego, CA 92121 USA

For questions about the CHIkids technology option:
Angela Boltman, CHIkids Co-Chair
Email: chi99-kids@acm.org
Tel: + 1 301 484 2157
Fax: + 1 301 405 6707

09:00 - 10:30

• Mediating Awareness and Communication through Digital but Physical Surrogates
  Hideaki Kuzuoka, University of Tsukuba
  Saul Greenberg, University of Calgary

• CoMedi: Using Computer Vision to Support Awareness and Privacy in Mediaspaces
  Jo�lle Coutaz, Fran�ois B�rard, Eric Carraux, William Astier: CLIPS-IMAG
  James L. Crowley, INRIA Rh�ne-Alpes

• A Revised Human Interface and Educational Applications on IdeaBoard
  Masaki Nakagawa, Koichiro Hotta, Hirokazu Bandou, Tsuyoshi Oguni, Naoki Kato, Shin-ichi Sawada: Tokyo University of Agriculture and Technology

Late-Breaking Results: Overcoming Human Limitations

• User Interface of a Nonvisual Table Navigation Method
  Chieko Asakawa, Takashi Itoh, IBM Japan Ltd.

• A Web Browsing Interface for Small-Screen Computers
  Atsushi Sugiura, NEC Corporation

• Auditory Browser for Blind and Visually Impaired Users
  Patrick Roth, Lori Petrucci, Thierry Pun, Geneva University; Andre Assimacopoulos, Swiss Central Union Of and For the Blind

• Supporting Memory for Spatial Location While Reading from Small Displays
  Kenton O�Hara, Abigail Sellen, Hewlett-Packard Laboratories; Richard Bentley, Xerox Research Centre Europe

• The Integrated Communication 2 Draw (IC2D): A Drawing Program for the Visually Impaired
  Hesham M. Kamel, James A. Landay, University of California, Berkeley

• Maximizing Screen-Space on Mobile Computing Devices
  Stephen A. Brewster, Peter G. Cryer, University of Glasgow

Papers: Gaze and Purpose

• Combining Observations of Intentional and Unintentional Behaviors for Human-Computer Interaction
  Yoshinori Kuno, Tomoyuki Ishiyama, Satoru Nakanishi, Yoshiaki Shirai: Osaka University

• Manual and Gaze Input Cascaded (MAGIC) Pointing
  Shumin Zhai, Carlos Morimoto, Steven Ihde: IBM Almaden Research Center

• Inferring Intent in Eye-Movement Interfaces: Tracing User Actions with Process Models
  Dario D. Salvucci, Carnegie Mellon University

Papers: Programming Techniques and Issues

• Implementing Interface Attachments Based on Surface Representations
  Dan R. Olsen Jr., Scott E. Hudson, Thom Verratti, Jeremy M. Heiner, Matt Phelps: Carnegie Mellon University

• A Visual Medium for Programmatic Control of Interactive Applications
  Luke S. Zettlemoyer, Robert St. Amant: North Carolina State University

• Should We Leverage Natural-Language Knowledge? An Analysis of User Errors in a Natural-Language-Style Programming Language
  Amy Bruckman, Elizabeth Edwards: Georgia Institute of Technology

Papers: Touching, Pointing, and Choosing

• Testing Pointing Device Performance and User Assessment with the ISO 9241, Part 9 Standard
  Sarah Douglas, Arthur E. Kirkpatrick, I. Scott Mackenzie: University of Oregon

• Touch-Sensing Input Devices
  Ken Hinckley, Mike Sinclair: Microsoft Research

• The Hotbox: Efficient Access to a Large Number of Menu-items
  Gordon Kurtenbach, George W. Fitzmaurice, Russell N. Owen, Thomas Baudel: Alias/Wavefront

Special Interest Group: One Size Fits All? Cultural Diversity in User Interface Design

Organizers

• Aaron Marcus, Aaron Marcus and Associates
• Nuray Aykin, AT&T Labs
• Apala Lahiri Chavan, Zinda GUI
• Girish V. Prabhu, Eastman Kodak Company
• Massaki Kurosu, Shizuoka University

Special Interest Group: User Interfaces for Electronic Product Catalogs

Organizers

• Markus Stolze, IBM Research
• Juergen Koenemann, German National Research Center for Information Technology

09:00 - 17:30

Other Activity: Student Posters

Student posters provide an excellent opportunity to discuss late-breaking results and ongoing work during the presentations. The student posters will be displayed in the Commons on Tuesday, Wednesday and Thursday.

Title	Author
An Alternative to Scrollbars on Small Screens	Staffan Bjork, Johan Redstrom, Viktoria Institute
Icon Size As a Function of Display Screen	Josey Chu, University of Wisconsin
Novice Heuristic Evaluations of a Complex Interface	Aleksandra Slavkovic, Karen Cross, Carnegie Mellon University
People, Places and the NewsPilot	Per Dahlberg, Johan Redstrom, Henrik Fagrell, The Viktoria Institute
The BubbleBadge: A Wearable Public Display	Jennica Falk, Staffan Bjork, Viktoria Institute
Musbus: A Personalized Mouse Training Program for Children with Autism	Erik Eliasson, Anna Fredrikson, Martin Rybrand, Markus Wahl, Chalmers University of Technology
The Importance of Coordination Devices in Text-based, Task-oriented Conversations	Jeff Hancock, Dalhousie University
Visualizing Learning Activities to Support Tutors	Christian Hardless, Urban Nulden, The Viktoria Institute
Synchronous Collaborative Navigation on the WWW	Yann Laurillau, Laboratoire CLIPS/IMAG
A Visual Language for a Sketch-Based UI Prototyping Tool	James Lin, University of California, Berkeley
WebStickers: Using Physical Objects as WWW Bookmarks	Peter Ljungstrand, Lars Erik Holmquist, Viktoria Institute
The Funki Buniz Playground: Facilitating Multi-Cultural Affective Collaborative Play	Heidy Maldonado, Antoine Picard, Stanford University
Hand Posture Recognition in a Body-Face Centered Space	Sebastien Marcel, France Telecom CNET
ComMotion: A Context-Aware communication System	Natalia Marmasse, MIT Media Laboratory
Quantifying Human Coordination HCI	Maurice R. Masliah
A Process for Research on Aging and Computer Use	Sherry E. Mead, Victoria A. Spaulding-Johnson, Georgia Institute of Technology
Virtual Interaction Using Robust Color Skin Detection	David Saxe
Reservations About the Usability of AirlineWeb Sites	Paula Selvidge, Wichita State University
Design Support for Interactive 3D Illustrations	Volker Paelke, University of Paderborn

10:30 - 11:30

Other Activity: Highlight on Posters

Student posters provide an excellent opportunity to discuss late-breaking results and ongoing work during the presentations. Student posters remain posted throughout the conference. Presenters will be available at their posters in The Commons on Wednesday from 10:30 to 11:30 am.

Poster Number	Author	Title
1	James Lin	A Visual Language for a Sketch-Based UI Prototyping Tool
2	Maurice R. Masliah	Quantifying Human Coordination in HCI
3	Sebastian Marcel	Hand Posture Recognition in a Body-Face Centered Space
4	Aleksandra Slavkovic and Karen Cross	Novice Heuristic Evaluations of a Complex Interface
5	Paula Selvidge	Reservations about the Usability of Airline Web Sites
6	Yann Laurillau	Synchronous Collaborative Navigation on the WWW
7	Jeff Hancock	The importance of coordination devices in text-based, task-oriented conversations
8	Christian Hardless and Urban Nulden	Visualizing Learning Activities to Support Tutors
9	Josey Chu	Icon Size as a Function of Display Screen
10	Staffan Bjork and Johan Redstrom	An Alternative to Scrollbars on Small Screens
11	Jennica Falk and Staffan Björk	The BubbleBadge: A Wearable Public Display
12	Natalia Marmasse	comMotion: a context-aware communication system
13	Per Dahlberg, Johan Redström and Henrik Fagrell	People, Places and the NewsPilot
14	Sherry E. Mead and Victoria A. Spaulding-Johnson	A Process for Research on Aging and Computer Use
15	Erik Eliasson, Anna Fredrikson, Martin Rybrand and Markus Wahl	Musbus: A Personalized Mouse Training Program for Children with Autism
16	Heidy Maldonado and Antoine Picard	The Funki Buniz Playground: Facilitating Multi-Cultural Affective Collaborative Play
17	David Saxe	Virtual Interaction using Robust Color Skin Detection
18	Peter Ljungstrand and Lars Erik Holmquist	WebStickers: Using Physical Objects as WWW Bookmarks
19	Volker Paelke	Design Support for Interactive 3D Illustrations

11:30 - 13:00

• AMORE: A World-Wide Web Image Retrieval Engine
  Sougata Mukherjea, Kyoji Hirata, Yoshinori Hara: C&C Research Laboratories

• VIDA (Visual Information Density Adjuster)
  Allison Woodruff, Xerox Palo Alto Research Center
  James Landay, Michael Stonebraker: University of California, Berkeley

Interview: Human Limits to HCI

A Conversation with Bill Buxton and Clifford Nass

What limits do humans impose on HCI? Are humans aware of these limits? What is keeping us from achieving greater benefit from technology?

BILL BUXTON is Chief Scientist at Alias/Wavefront Inc., as well as its parent company, Silicon Graphics, Inc. (SGI), and is an Associate Professor in the Department of Computer Science at the University of Toronto.

CLIFFORD NASS is an associate professor of communication at Stanford University, with appointments in Symbolic Systems, Sociology, and Science, Technology, and Society, and is co-director of the Social Responses to Communication Technology Project at Stanford University. He has published extensively, including The Media Equation: How People Treat Computers, Television, and New Media Like Real People and Places.

Late-Breaking Results: Exploring the Frontiers of Interface Design

• Redirecting Direct Manipulation or What Happens When the Goal is in Front of You But the Interface Says to Turn Left?
  Wai-Tat Fu, Wayne D. Gray, George Mason University

• Developing Task Models From Information Scenarios
  Fabio Paternó, Cristiano Mancini, CNUCE-C.N.R.

• Setting the Stage for Improvised Video Scenarios
  Thomas Binder, School of Art and Communication

• Using HTML to Create Early Prototypes
  Jaya Vaidyanathan, Jason E. Robbins, David F. Redmiles, University of California, Irvine

• Visual Instruments for an Interactive Mural
  Terry Winograd, Francois Guimbretiére, Stanford University

• Evaluating Two-Handed Input Techniques: Rectangle Editing and Navigation
  Didier Casalta, Yves Guiard, CNRS & Université de la Mediterranee; Michel Beaudouin-Lafon, University of Aarhus

Panel: Third Generation Computer Tutors: Learn From or Ignore Human Tutors

Albert Corbett, John Anderson, Ken Koedinger: Carnegie Mellon University
Art Graesser, University of Memphis
Kurt VanLehn, University of Pittsburgh

Papers: Foundations for Navigation

• Direct Combination
  Simon Holland, Open University
  Daniel Oppenheim, IBM T.J. Watson Research Center

• Footprints: History-Rich Tools for Information Foraging
  Alan Wexelblat, Pattie Maes: MIT Media Laboratory

• Design Guidelines for Landmarks to Support Navigation in Virtual Environments
  Norman G. Vinson, National Research Council, Canada

Papers: Working with People Near and Far

• Single Display Groupware: A Model for Co-Present Collaboration
  Jason Stewart, University of New Mexico
  Benjamin B. Bederson, Allison Druin: University of Maryland

• The GAZE Groupware System: Mediating Joint Attention in Multiparty Communication and Collaboration
  Roel Vertegaal, University of Twente

• Video Helps Remote Work: Speakers Who Need to Negotiate Common Ground Benefit from Seeing Each Other
  Elizabeth S. Veinott, Judith Olson, Gary M. Olson: University of Michigan
  Xiaolan Fu, Chinese Academy of Sciences

Special Interest Group: Consolidating a New HCI Community: The Brazilian Experience

Organizers

• Raquel O. Prates, Pontificia Universidade Católica do Rio De Janiero
• Clarisse S. de Souza, Pontificia Universidade Católica do Rio De Janiero
• Juliana P. Salles, Universidade Federal de Minas Gerais

Special Interest Group: The Consultants' Forum

Organizers

• Austin Henderson, Rivendel Consulting
• Jeff Johnson, UI Wizards, Inc.
• Aaron Marcus, Aaron Marcus and Associates, Inc.

13:30 - 14:15

Plenary: How to Become an Internet Felon in Three Easy Steps

Barbara Simons

The ease with which digitized intellectual property can be duplicated, distributed, and accessed on the Internet has generated fear and misunderstanding of the net. These concerns have prompted legislation and regulations that could have the effect of restricting access to information and reducing privacy on the Internet.

The Internet has no national boundaries, and there is no international consensus on how to balance users' rights to privacy and users' rights to protection of their intellectual property. Legislation has been proposed throughout the world that could seriously affect the way that HCI professionals design and deliver interactive technologies.

Barbara Simons will describe some of the resulting potential dangers for HCI professionals and general users of the Internet. She will review current battles over copyright protections and privacy, and will describe how such laws could change the nature of our work.

Barbara Simons earned her Ph.D. in computer science from the University of California, Berkeley. She served as Senior Technology Advisor for IBM Global Services. Ms. Simons is a Fellow of ACM and of the American Association for the Advancement of Science (AAAS). She was elected president of ACM in 1998.

Ms. Simons is a winner of the 1998 EFF Pioneer Award. In 1995, CNET selected her as one of its 26 Internet "Visionaries"; in 1994 Open Computing named her as one of the top 100 women in computing; and in 1992 she was awarded the CPSR Norbert Wiener Award for Professional and Social Responsibility in Computing. Science Magazine featured her in a special edition on women in science in 1992.

14:30 - 16:00

• HyperAudio: Location-Awareness + Adaptivity
  Daniela Petrelli, Elena Not, Marcello Sarini, Oliviero Stock, Carlo Strapparava, Massimo Zancanaro: IRST

• A Motional Interface Approach Based on User's Tempo
  Naoko Umeki, Akira Morishita, Shunichi Numazaki, Yasunobu Yamauchi, Isao Mihara, Miwako Doi: Toshiba Research and Development Centerx

Late-Breaking Results: HCI: Bridging the Gulf Between Humans and Computers

• Effects of the Form of Representation and Number of Computer Agents on Conformity
  Eun-Ju Lee, Clifford Nass, Stanford University

• Printertainment: Printing With Interactive Cover Sheets
  Jason Hong, University of California at Berkeley; Morgan N. Price, Bill N. Schilit, Gene Golovchinsky, FX Palo Alto Laboratory

• This Computer Responds to User Frustration
  Jonathan Klein, IS Robotics, Inc.; Youngme Moon, Harvard Business School; Rosalind W. Picard, MIT Media Laboratory

• Face-to-Face Interfaces
  Scott Prevost, Peter Hodgson, Linda Cook, Elizabeth Churchill, FX Palo Alto Laboratory

• Presentation of Personalized Information Using Anthropomorphous Agents
  Tomonari Kamba, Yuichi Koike, NEC Corporation

• Effects of Computer/Television Convergence on Users� Perception of Content, Equipment and Affect
  Hadyn K. Kernal, Stanford University

Panel: Counting on Community in Cyberspace

Marc A. Smith, University of California, Los Angeles
Steven M. Drucker, Microsoft Research
Barry Wellman, University of Toronto
Robert Kraut, Carnegie Mellon University

Papers: Profiles, Notes, and Surfaces

• Visual Profiles: A Critical Component of Universal Access
  Julie A. Jacko, University of Wisconsin-Madison
  Max A. Dixon, Florida International University
  Robert H. Rosa, Jr., Ingrid U. Scott, Charles J. Pappas: University of Miami School of Medicine

• NotePals: Lightweight Note Sharing by the Group, for the Group
  Richard C. Davis, James A. Landay, Victor Chen, Jonathan Huang, Rebecca B. Lee, Francis C. Li, James Lin, Charles B. Morrey III, Ben Schleimer: University of California, Berkeley
  Morgan N. Price, Bill N. Schilit: FX Palo Alto Laboratory

• Flatland: New Dimensions in Office Whiteboards
  Elizabeth D. Mynatt, W. Keith Edwards, Anthony LaMarca: Xerox Palo Alto Research Center
  Takeo Igarashi, University of Tokyo

Papers: Stories and Narratives

• Designing Multimedia for Learning: Narrative Guidance and Narrative Construction
  Lydia Plowman, Scottish Council for Research in Education
  Rosemary Luckin, University of Sussex
  Diana Laurillard, Matthew Stratfold, Josie Taylor: Open University

• Interactive 3D Sound Hyperstories for Blind Children
  Mauricio Lumbreras, Jaime Sanchez: University of Chile

• Designing PETS: A Personal Electronic Teller of Stories
  Allison Druin, Jaime Montemayor, Jim Hendler, Britt McAlister, Angela Boltman, Eric Fiterman, Aurelie Plaisant, Alex Kruskal, Hanne Olsen, Isabella Revett, Thomas Plaisant Schwenn, Lauren Sumida, Rebecca Wagner: University of Maryland

Papers: Tagging and Tracking Objects in Physical UIs

• The Paper Palette: Presentations on a Silver Platter
  Les Nelson, Lia Adams, Satoshi Ichimura, Elin Pedersen: FX Palo Alto Laboratory

• TouchCounters: Designing Interactive Electronic Labels for Physical Containers
  Paul Yarin, Hiroshi Ishii: MIT Media Laboratory

• Bridging Physical and Virtual Worlds with Electronic Tags
  Roy Want, Kenneth P. Fishkin, Anuj Gujar, Beverly L. Harrison: Xerox PARC

Special Interest Group: Current Issues in Assessing and Improving Documentation Usability

Organizers

• Stephanie Rosenbaum, Tec-Ed, Inc.

Special Interest Group: Universal Web Access: Delivering Services to Everyone

Organizers

• Gary Perlman, OCLC Online Computer Library Center, Inc.

16:30 - 18:00

Interview: Methodological Limits to HCI (with a special look at HCI and older users)

A Conversation with Wayne Gray and Bill Gaver

What do we really know about the relative benefit of the design and evaluation methods we use? What methods offer new opportunities? What opportunities exist for improving senior HCI? How do we find the methodological guidance we need?

WAYNE GRAY is Associate Professor of Psychology and Fellow of the Krasnow Institute for Advanced Study, at George Mason University. He is currently head of the Human Factors and Applied Cognitive Program. His notable work at NYNEX's Science & Technology Center included the development and application of CPM-GOMS to telephone operator workstations.

BILL GAVER is a Senior Research Fellow at the Royal College of Art in London. He has worked on media spaces, affordances, and virtual physics at Apple Computer, Rank Xerox EuroPARC, and the Delft University of Technology. Now he is focusing on "provocative awareness," the use of technology for aesthetic and cultural interventions.

Late-Breaking Results: New Interaction Techniques

• Sweeping Away Disorder with the Broom Alignment Tool
  Jason Robbins, Michael Kantor, David Redmiles, University of California, Irvine

• Prosodic Font: Translating Speech Into Graphics
  Tara Rosenberger, MIT Media Laboratory; Ronald L. MacNeil, MIT Center for the Advanced Visual Studies

• Rhythmic Menus: Toward Interaction Based on Rhythm
  Sébastien Maury, Sylvie Athenes, Stéphane Chatty, Centre d'Etudes de la Navigation Aérienne

• Amplifying Spatial Rotations in 3D Interfaces
  Ivan Poupyrev, Takahiro Otsuka, ATR MIC Research Laboaratories; Suzanne Weghorts, University of Washington; Tadao Ichikawa, Hiroshima University

• Privacy Critics: UI Components to Safeguard Users� Privacy
  Mark S. Ackerman, University of California at Irvine; Lorrie Cranor, Shannon Laboratory

• TICLE: A Tangible Interface for Collaborative Learning Environments
  Lori L. Scarlatos, Yuliya Dushkina, Shalva Landy, Brooklyn College, CUNY

Panel: Social Navigation: What is it Good For?

Alan Wexelblat, Synquiry Technologies Ltd.
Andreas Dieberger, Emory University
Paul Dourish, Xerox PARC
Kristina H��k, Swedish Institute of Computer Science
Paul Resnick, University of Michigan

Papers: Augmented Surfaces

• Augmented Surfaces: A Spatially Continuous Work Space for Hybrid Computing Environments
  Jun Rekimoto, Sony Computer Science Laboratory
  Masanori Saitoh, Keio University

• Urp: A Luminous-Tangible Workbench for Urban Planning and Design
  John Underkoffler, Hiroshi Ishii: MIT Media Laboratory

• PingPongPlus: Design of Athletic-Tangible Interface for Computer-Supported Cooperative Play
  Hiroshi Ishii, Craig Wisneski, Julian Orbanes, Ben Chun, Joe Paradiso: MIT Media Laboratory

Papers: Cognitive Models of Screen Interaction

• Eye Tracking the Visual Search of Click-Down Menus
  Michael D. Byrne, John R. Anderson, Scott Douglass, Michael Matessa: Carnegie Mellon University

• Cognitive Modeling Demonstrates How People Use Anticipated Location Knowledge of Menu Items
  Anthony J. Hornof, David E. Kieras: University of Michigan

• Learning and Performing by Exploration: Label Quality Measured by Latent Semantic Analysis
  Rodolfo Soto, University of Colorado

Papers: Tools for Building Interfaces and Applications

• MOBILE: User-Centered Interface Building
  Angel R. Puerta, Eric Cheng, Justin Min, Tunhow Ou: Stanford University

• The Context Toolkit: Aiding the Development of Context-Enabled Applications
  Daniel Salber, Anind K. Dey, Gregory D. Abowd: Georgia Institute of Technology

• Getting More Out of Programming-By-Demonstration
  Richard G. McDaniel, Brad A. Myers: Carnegie Mellon University

Special Interest Group: HCI Journals: Valuable Reading or Waster Paper?

Organizers

• John Karat, IBM T.J. Watson Research Center

Special Interest Group: SIGCHI's Role in Influencing Technology Policy

Organizers

• Jeff Johnson, UI Wizards, Inc.
• Ben Shneiderman, University of Maryland
• Elliott Soloway, University of Michigan
• Austin Henderson, Rivendel Consulting
• Barbara Simons, ACM President

18:15 - 20:00

Other Activity: Tour: MAYA Design Group Tour and Night on the Southside

MAYA Design Group, a CHI 99 sponsor, will host a tour of its design studio on Pittsburgh's historic Southside. You will see demos of MAYA's leading-edge graphical user interface designs and information architectures, including its innovations in data visualization. Following the tour, you are invited to visit the many fine restaurants and nightspots within walking distance. MAYA will provide maps, information about each restaurant, and discount coupons.

Transportation:
Transportation will be provided by Molly's Trolleys. Trolleys depart the David Lawrence Convention Center at 6:15 pm and at 6:30 pm. One trolley will return to Downtown Pittsburgh at 8:00 pm. A second trolley will return at 10:15 pm.

Reservations:
Reservations for the trolleys are limited to 60 people. Reservations for the tour are limited to 100 people. To make your reservation, visit www.maya.com/chi99.html.

18:30 - 19:30

Other Activity: ACM/SIGCHI Business Meeting

The annual ACM SIGCHI Business Meeting will be held after the last session of the day on Wednesday.

This meeting will review ongoing SIGCHI programs and activities, discuss issues affecting SIGCHI and SIGCHI's future, and answer any questions you care to raise. This meeting is open to all conference participants. Please attend!