Concurrency control in groupware systems
SIGMOD '89 Proceedings of the 1989 ACM SIGMOD international conference on Management of data
An integrating, transformation-oriented approach to concurrency control and undo in group editors
CSCW '96 Proceedings of the 1996 ACM conference on Computer supported cooperative work
Charting past, present, and future research in ubiquitous computing
ACM Transactions on Computer-Human Interaction (TOCHI) - Special issue on human-computer interaction in the new millennium, Part 1
Consistency maintenance in real-time collaborative graphics editing systems
ACM Transactions on Computer-Human Interaction (TOCHI)
PDA and Gesture Uses in Practice: Insights for Designers of Pen-Based
PDA and Gesture Uses in Practice: Insights for Designers of Pen-Based
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Effective editing tools are very important to innovative design of 3D object. The technologies for designing tools presented in this paper mainly involve collaborative mechanism and natural interaction for collaborative editing environment. For collaborative mechanism, three aspects are covered in this paper: one aspect is 3D object attributes analysis which is essential to the conflict solution of collaborative design process. Interaction transaction log of 3D collaborative editing environment and the system architecture are put forward and addressed as another two aspects. Furthermore, based on interactive transaction log, the collaborative editing mechanism is constructed and the conflict detection strategy during multi-user concurrency editing process is also discussed. As for interaction naturalness, the pen-based gestures appropriate to manipulating 3D model are covered briefly. Finally a prototype system has been built to fully explore the above technologies.