Editing Activity theory (section)

===Systemic-structural activity theory (SSAT)===
At the end of the 1990s, a group of Russian and American activity theorists working in the systems-cybernetic tradition of Bernshtein and Anokhin began to publish English-language articles and books dealing with topics in human factors and ergonomics<ref>Bedny, G. Z. & Meister, D. (1997). The Russian Theory of Activity: Current Applications to Design and Learning, Mahwah, NJ, Lawrence Erlbaum Associates.</ref> and, latterly, human–computer interaction.<ref>Bedny, G. Z. & Karwowski, W. (2003b). A Systemic-Structural Activity Approach to the Design of Human-Computer Interaction Tasks. International Journal of Human-Computer Interaction, 16, pp. 235–260.</ref> Under the rubric of '''systemic-structural activity theory''' (SSAT), this work represents a modern synthesis within activity theory which brings together the cultural-historical and systems-structural strands of the tradition (as well as other work within Soviet psychology such as the Psychology of Set) with findings and methods from Western human factors/ergonomics and cognitive psychology.

The development of SSAT has been specifically oriented toward the analysis and design of the basic elements of human work activity: tasks, tools, methods, objects and results, and the skills, experience and abilities of involved subjects. SSAT has developed techniques for both the qualitative and quantitative description of work activity.<ref>Bedny, G. Z. & Karwowski, W. (2006) A Systemic-Structural Theory of Activity: Applications to Human Performance and Work Design. Boca Raton, CRC Press/Taylor & Francis.</ref> Its design-oriented analyses specifically focus on the interrelationship between the structure and self-regulation of work activity and the configuration of its material components.