Consistency control in synchronous cooperative work

Abstract

Consistency control is an important research field in CSCW. We present an improved algorithm of concurrency control based on operation transformation. Our fastAdOPT algorithm improves other algorithms in two ways: first, we improve the transformation efficiency by saving the original form of operations in a request log and by the special process of "intimate preceding" operations. Secondly, it can realize a natural interactive mode by not using the undo/redo operation.