Differential Synchronizaiton Mechanism for a Real-Time Collaborative Web Page Editing System WFE-S

We propose a differential synchronization mechanism for Real-Time Collaborative Editing. We are developing WFE, a system for Real-Time Collaborative Editing for existing Web pages. We need to improve the response time to reduce conflicts among multiple users. We develop a DOM tree based differential updating mechanism to minimize update information for real-time editing. We implement the method on Google App Engine. We present comparison experiments that show our method can achieve practical this.