Identifying the approach used by those revision experts par excellence—that is, professional editors—should enable researchers to better grasp the revision process. To further explore this hypothesis, the author conducted research among professional editors, six of whom she filmed as they engaged in their practice. An analysis of their work approach strategies showed their detection strategies to consist in anticipating errors and in comparing the author's text with the editor's knowledge, which appears in a range of states: certitude, uncertainty, and ignorance. Furthermore, the participating editors used problem-solving strategies to automatically solve more than half of the problems encountered in the text. Otherwise, they used immediate or postponed strategies. This description of professional editors in action opens a number of avenues for the further research and development of in-class instruction of self-revision and professional editing.

While some models of computer writing environments have emerged in the literature on writing, most of them are done with the purpose of helping writers in an academic context and very few, if any, with the aim of facilitating the work of professional writers or students in professional writing. We think, however, that we can learn from the previous models to build a multi-purpose computer writing environment that will take into account the needs of the professional writers as well as those of the students learning to write. We will begin by looking at some models of writing proposed by Hayes and Flower in 1980 and also at the model of White and Arndt. Afterwards, we will review the model of professional writers developed by Clerc and link it with the previous models. We will then have to look at some computer writing environments described in the literature and see how these environments take into account the process and tasks identified in writing. Finally, we will suggest our model.