This article is concerned with characterizing literacy activity as it is practiced in professional workplaces. Its starting point is activity theory, which grew out of the work of Vygotsky and has been subsequently elaborated in Russia and elsewhere. First, the authors propose that existing versions of activity theory are unable to account adequately for practical human activity in contemporary workplaces, and present a revised perspective that opens the way for new theoretical developments. Second, they elaborate two new constructs, task and work ensemble, and apply them to a short collaborative writing sequence collected in the field. Both constructs are seen to account in a substantive way for the structure of the composing activity carried out by the collaborators. They close with a discussion of the complementarity and theoretical advantages of the two constructs.

This article treats the representations that are studied in situated literacy and an associated methodological approach based on semantic analysis that characterizes the representations in a systematic and principled manner. Application of the method is illustrated for four situated literacy examples: (a) mother-child word-naming games, (b) children's story writing, (c) journalistic writing, and (d) technical writing. The description of representations that is obtained constitutes an explanation of the literacy actions in that it reveals cultural, social, and cognitive influences on these actions.

A“cognitive discourse analysis” was employed to analyze instructions for using a word processor written by eighth-grade students. The approach analyzes text structure in order to specify underlying semantic and conceptual knowledge structures. Our analyses revealed that the written instructions produced by the student writers were deficient in providing a reader with the information necessary for performing the task in two distinct ways. First, the group of students as a whole presented insufficient content information in their texts, particularly with respect to the subprocedures required to use the word processor. Second, the organization of students' texts did not parallel the hierarchical structure of the procedures described. These results suggest the importance of looking at writing from the point of view of the knowledge structures being expressed.