WFE-Enabled Web Page Transformation: Generating Real-Time Collaborative Editing Systems from Existing Web Pages

We have been developing Web Flexible Editing (WFE), a system for Real-Time Collaborative Editing (RTCE) for existing Web pages. We propose three transformation approaches to enable several users to modify existing Web pages simultaneously on their browsers, while modified contents are reflected to other users in real-time. The three approaches (a server-side, a local proxy, and a companion server) involve trade-offs among URL transparency, server environment invasiveness, and user environment invasiveness. We present one of the optimal implementations to realize our system as a service in a cloud computing environment. Our comparison experiments show that we can achieve this by using push technology to perform synchronization.