Sending on demand in heterogeneous collaborative editing systems

With heterogeneous devices proliferating, collaborative work among ubiquitous environment is needed. For the limited bandwidth of wireless network and the limited size of screen on palmtop computer, tailored communication and data exchanges between desktop and mobile sites was studied in our research. We proposed a grouping scheme together with Sending on Demand Policy to reduce the message flow in heterogeneous collaborative editing systems implemented by different devices. Consistency maintenance relevant to grouping is solved by a Linked History Buffer. The scheme has been implemented in our prototype system that can work well in heterogeneous environments.