Planning is typically a joint activity whereas drafting, the second phase, is solitary. Once this phase is reached, communication between group members is likely to shift from lengthy, highly interactive sessions to brief conversations in which group members exchange progress reports or otherwise coordinate their separate activities. When the end is near, the participants enter an integration and reviewing phase during which they may again require extensive interaction to weave together the results of their individually performed work. Thus a model arises that reveals the temporal sequence in the communication between group members engaged in a collborative writing effort. It implies a differential impact of computer-mediated communication across time.
Roles clearly exist within writing groups.
According to Sharples et. They warn for the role inertia that is likely to interfere with experienced writers' excursions into other roles, because these may be better suited to the task at hand. For example, if the system were to embody a strict notion of the reviewer role, a reviewer would not be able to add alternative text. It takes into account the issues that were previously mentioned. For example, the tool may signal upcoming deadlines.