Program (with Photos) for ACM GROUP'99 Workshop on
Consistency Maintenance and Group Undo in Real-Time Group Editors

November 14, 1999.
Embassy Suites Hotel, Phoenix, Arizona, USA

Opening: 8:50

Session I: 9:00 - 10:00
Chair: Chengzheng Sun (photo)

• The Gods must be crazy: A matter of time in collaborative systems
  Du Li, Limin Zhou, and Richard R. Muntz
  University of California, Los Angeles, USA
  Powerpoint slides (photo)
• Flexible synchronization of shared groupware objects
  Stephan Lukosch and Claus Unger
  University of Hagen, Germany
  Powerpoint slides (photo)

Break: 10:00 - 10:30

Session II: 10:30 - 12:00
Chair: Matthias Ressel (photo)

• Optional and responsive locking in collaborative graphics editing systems
  David Chen and Chengzheng Sun
  Griffith University, Australia
  Powerpoint slides (photo)
• Collaborative Diagramming
  Jeffrey D. Campbell
  University of Pittsburgh, USA
  Powerpoint slides (photo)
• Leveraging Operational Transformation in Collaborative Object Groups
  G. Henri ter Hofte
  Telematica Instituut, The Netherlands
  Powerpoint slides (photo)

Lunch: 12:00 - 13:30 (photo1, photo2)

Session III: 13:30 - 15:00
Chair: Clarence (Skip) Ellis (photo)

• Working session (photo1) (photo2)
  Topics include but not limited to:
  comparison of OT-based techniques with other approaches
  open puzzles in CE,
  semantic correctness,
  application issues,
  future directions, ...
  

Closing: 15:00 (photo1) (photo2)

The session for workshop summary during GROUP'99 (15:30 - 17:00, Nov 16, 1999)
(photo1) (photo2) (photo3) (photo4)

Papers on group editors to be presented at ACM GROUP'99:

• A distributed algorithm for graphic objects replication in real-time group editors
  David Chen and Chengzheng Sun
  Griffith University, Australia
• Reducing the problems of group undo
  Matthias Ressel, UBS AG, Switzerland
  Rul Gunzenhauser, University of Stuttgart, Germany
• Runtime dynamics in collaborative systems
  Du Li and Richard R. Muntz
  University of California, Los Angeles, USA

More papers on group editors can be found at URL:

SIGCE: An International Special Interest Group on Collaborative Editing