Activity theory as an activist and interventionist theory

This article presents arguments used in current discussions on potential shortcomings of contemporary works within activity theory concerning subjectivity and the use of conceptual models such as the triangular representation of the activity system. It documents the history of activity theory as an activist and interventionist theory. It suggests that advances in activity theory depend on the ability of those within this framework to establish fruitful connections between the classic heritage and challenging possibilities of societal change. The main arguments of the critiques are examined in this historical perspective. Combined with design and implementation of material transformations, both the models and the voices of the subjects act as mediators and are embedded in collective change efforts. The article indicates a possible direction to reorient the current discussions toward interventionist methods developed within the framework of activity theory, namely the Change Laboratory, the Clinic of Activity, and the Fifth Dimension.