Chengzheng Sun

TL;DR: A consistency model, with properties of convergence, causality preservation, and intention preservation, is proposed as a framework for consistency maintenance in real-time cooperative editing systems and an integrated set of schemes and algorithms are devised.

TL;DR: An integrative review of the evolution of operational tra=formation techniques, with the go~ of identifying the major is-m, dgotiths, achievements, and remaining Mlenges, and a new optimized generic operational transformation control algorithm.

TL;DR: An object-level multiversioning approach to consistency maintenance in real-time collaborative graphic editors is proposed, which is novel in achieving intention preservation and convergence, in preserving the work concurrently produced by multiple users in the face of conflict, and in minimizing the number of object versions for conflict resolution.

TL;DR: An innovative Transparent Adaptation approach and associated supporting techniques that can be used to convert existing and new single-user applications into collaborative ones, without changing the source code of the original application are reported.

TL;DR: This approach has been applied to transparently convert MS Word into a real-time collaborative word processor, called CoWord, which supports multiple users to view and edit any objects in the same Word document at the same time over the Internet.